diff --git a/src/i18n/ja.ts b/src/i18n/ja.ts
index c7b5e2c..c9ef84f 100644
--- a/src/i18n/ja.ts
+++ b/src/i18n/ja.ts
@@ -775,7 +775,7 @@ export const jaOverrides = {
   'usage.analysis.shareLabel': '割合',
   'usage.events.title': 'リクエストイベントログ',
   'usage.events.description': '選択した期間のリクエストイベントを絞り込んで確認します。',
-  'usage.events.columns': '列',
+  'usage.events.columns': '表示する列',
   'usage.events.exportPage': '絞り込み結果を CSV 出力',
   'usage.events.exportDescription': '現在の絞り込み結果の全リクエスト項目を CSV ファイルに出力し、保存先を選択します',
   'usage.events.exportDialogTitle': 'CSV の保存先を選択',
@@ -789,6 +789,10 @@ export const jaOverrides = {
   'usage.events.dragHint': 'ヘッダーの境界をドラッグして列幅を調整',
   'usage.events.columnSettings': '表示設定',
   'usage.events.columnSettingsDescription': 'リクエスト詳細に表示する列を選択します。',
+  'usage.events.rowHeight.title': 'レコードの行高を固定',
+  'usage.events.rowHeight.description': 'すべてのレコードを同じ高さにします。オフにすると内容に合わせて調整します。',
+  'usage.events.rowHeight.fixed': '行高',
+  'usage.events.rowHeight.dragHint': 'スライダーをドラッグして調整',
   'usage.events.columnsSelected': '{total} 列中 {selected} 列を選択',
   'usage.events.selectAllColumns': 'すべて選択',
   'usage.events.applyColumns': '適用',
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index a9c9bbf..c427d28 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -763,7 +763,7 @@ export const en: Record<MessageKey, string> = {
   'usage.analysis.shareLabel': 'Share',
   'usage.events.title': 'Request Event Log',
   'usage.events.description': 'Filter and inspect request events in the selected time range.',
-  'usage.events.columns': 'Columns',
+  'usage.events.columns': 'Show columns',
   'usage.events.exportPage': 'Export Filtered CSV',
   'usage.events.exportDescription': 'Export all request fields matching the current filters and choose where to save the CSV',
   'usage.events.exportDialogTitle': 'Choose where to save the CSV',
@@ -777,6 +777,10 @@ export const en: Record<MessageKey, string> = {
   'usage.events.dragHint': 'Drag column header borders to resize',
   'usage.events.columnSettings': 'Display Settings',
   'usage.events.columnSettingsDescription': 'Choose which columns appear in request details.',
+  'usage.events.rowHeight.title': 'Fixed row height',
+  'usage.events.rowHeight.description': 'Use one height for every record; turn it off to fit content automatically.',
+  'usage.events.rowHeight.fixed': 'Row height',
+  'usage.events.rowHeight.dragHint': 'Drag the slider to adjust',
   'usage.events.columnsSelected': '{selected} of {total} columns selected',
   'usage.events.selectAllColumns': 'Select All',
   'usage.events.applyColumns': 'Apply',
diff --git a/src/i18n/locales/zh-CN.ts b/src/i18n/locales/zh-CN.ts
index d74ed72..70221e2 100644
--- a/src/i18n/locales/zh-CN.ts
+++ b/src/i18n/locales/zh-CN.ts
@@ -762,7 +762,7 @@ export const zhCN = {
   'usage.analysis.shareLabel': '占比',
   'usage.events.title': '请求事件日志',
   'usage.events.description': '筛选并查看所选时间范围内的请求事件。',
-  'usage.events.columns': '列',
+  'usage.events.columns': '显示列',
   'usage.events.exportPage': '导出筛选结果 CSV',
   'usage.events.exportDescription': '导出当前筛选结果中的全部请求字段，并选择保存位置',
   'usage.events.exportDialogTitle': '选择 CSV 保存位置',
@@ -776,6 +776,10 @@ export const zhCN = {
   'usage.events.dragHint': '可拖动表头边线调整每列宽度',
   'usage.events.columnSettings': '显示设置',
   'usage.events.columnSettingsDescription': '选择请求明细中需要显示的列。',
+  'usage.events.rowHeight.title': '固定记录行高',
+  'usage.events.rowHeight.description': '开启后每条记录使用统一高度；关闭时根据内容自动适应。',
+  'usage.events.rowHeight.fixed': '行高',
+  'usage.events.rowHeight.dragHint': '拖动滑块调整高度',
   'usage.events.columnsSelected': '已选择 {selected} / {total} 列',
   'usage.events.selectAllColumns': '选择全部',
   'usage.events.applyColumns': '应用',
diff --git a/src/pages/UsageEventsView.css b/src/pages/UsageEventsView.css
index 5800fb8..75ac077 100644
--- a/src/pages/UsageEventsView.css
+++ b/src/pages/UsageEventsView.css
@@ -50,16 +50,20 @@
   background: var(--usage-log-surface);
   color: var(--usage-log-muted);
   box-shadow: none;
-  font-size: 11px;
+  font-size: 12px;
   font-weight: 500;
   white-space: nowrap;
   cursor: pointer;
   transition: background .15s ease, border-color .15s ease;
 }
 
-.usage-request-log .usage-col-reset-btn.icon-only {
-  width: 32px;
-  padding: 0;
+.usage-request-log .usage-col-settings-btn svg {
+  width: 16px;
+  height: 16px;
+}
+
+.usage-request-log .usage-col-settings-btn {
+  color: var(--usage-log-text);
 }
 
 .usage-request-log .usage-col-settings-btn:hover,
@@ -131,6 +135,14 @@
   line-height: 1.45;
 }
 
+.usage-request-log.usage-row-height-auto .usage-events-table td {
+  height: auto;
+}
+
+.usage-request-log.usage-row-height-fixed .usage-events-table td {
+  height: var(--usage-row-height, 68px);
+}
+
 .usage-request-log .usage-events-table tbody tr:hover td {
   background: var(--usage-log-hover) !important;
 }
diff --git a/src/pages/UsageEventsView.tsx b/src/pages/UsageEventsView.tsx
index 79075e3..95a678f 100644
--- a/src/pages/UsageEventsView.tsx
+++ b/src/pages/UsageEventsView.tsx
@@ -1,8 +1,8 @@
 import { usagePreferences } from '../services/usagePreferences';
-import { useEffect, useRef, useState, type KeyboardEvent } from 'react';
+import { useEffect, useRef, useState, type KeyboardEvent, type CSSProperties } from 'react';
 import { invoke } from '@tauri-apps/api/core';
 import { save } from '@tauri-apps/plugin-dialog';
-import { ArrowDown, ArrowUp, Brain, ChevronLeft, ChevronRight, Columns3Cog, Database, DatabaseZap, Download, RotateCcw, TriangleAlert, X } from 'lucide-react';
+import { ArrowDown, ArrowUp, Brain, ChevronLeft, ChevronRight, Columns3, Database, DatabaseZap, Download, RotateCcw, TriangleAlert, X } from 'lucide-react';
 import { getCurrentLocale, useI18n } from '../i18n';
 import type { MessageKey } from '../i18n/resources';
 import { formatCacheReadRate, formatGenerationSpeed } from '../services/usageMetrics';
@@ -116,9 +116,26 @@ const EVENT_COL_WIDTHS_STORAGE_KEY = 'cpa-gui.usage-events-col-widths.v4';
 const LEGACY_EVENT_COL_WIDTHS_STORAGE_KEY = 'cpa-gui.usage-events-col-widths.v3';
 const EVENT_VISIBLE_COLS_STORAGE_KEY = 'cpa-gui.usage-events-visible-cols.v6';
 const LEGACY_EVENT_VISIBLE_COLS_STORAGE_KEY = 'cpa-gui.usage-events-visible-cols.v5';
+const EVENT_ROW_HEIGHT_ENABLED_STORAGE_KEY = 'cpa-gui.usage-events-row-height-enabled.v1';
+const EVENT_ROW_HEIGHT_STORAGE_KEY = 'cpa-gui.usage-events-row-height.v1';
+const DEFAULT_EVENT_ROW_HEIGHT = 68;
+const MIN_EVENT_ROW_HEIGHT = 48;
+const MAX_EVENT_ROW_HEIGHT = 140;
 
 const getAllEventColumnKeys = () => EVENT_COLUMNS.map((column) => column.key);
 
+const clampEventRowHeight = (value: number) => Math.min(
+  MAX_EVENT_ROW_HEIGHT,
+  Math.max(MIN_EVENT_ROW_HEIGHT, Math.round(value)),
+);
+
+const getInitialRowHeightEnabled = () => usagePreferences.getItem(EVENT_ROW_HEIGHT_ENABLED_STORAGE_KEY) === 'true';
+
+const getInitialRowHeight = () => {
+  const value = Number(usagePreferences.getItem(EVENT_ROW_HEIGHT_STORAGE_KEY));
+  return Number.isFinite(value) ? clampEventRowHeight(value) : DEFAULT_EVENT_ROW_HEIGHT;
+};
+
 export const getInitialVisibleColumns = (): EventColumnKey[] => {
   try {
     const currentRaw = usagePreferences.getItem(EVENT_VISIBLE_COLS_STORAGE_KEY);
@@ -480,6 +497,8 @@ export function EventsView({
   const [columnSettingsOpen, setColumnSettingsOpen] = useState(false);
   const [draftVisibleColumnKeys, setDraftVisibleColumnKeys] = useState<EventColumnKey[]>(visibleColumnKeys);
   const [resizingCol, setResizingCol] = useState<EventColumnKey | null>(null);
+  const [fixedRowHeight, setFixedRowHeight] = useState(getInitialRowHeightEnabled);
+  const [rowHeight, setRowHeight] = useState(getInitialRowHeight);
   const [exporting, setExporting] = useState(false);
 
   const columnDialogRef = useDialogFocusTrap<HTMLElement>({
@@ -543,6 +562,17 @@ export function EventsView({
     setDraftVisibleColumnKeys(getAllEventColumnKeys());
   };
 
+  const updateFixedRowHeight = (enabled: boolean) => {
+    setFixedRowHeight(enabled);
+    usagePreferences.setItem(EVENT_ROW_HEIGHT_ENABLED_STORAGE_KEY, String(enabled));
+  };
+
+  const updateRowHeight = (value: number) => {
+    const next = clampEventRowHeight(value);
+    setRowHeight(next);
+    usagePreferences.setItem(EVENT_ROW_HEIGHT_STORAGE_KEY, String(next));
+  };
+
   const resetSingleColumn = (key: EventColumnKey, e: React.MouseEvent) => {
     e.preventDefault();
     e.stopPropagation();
@@ -686,12 +716,12 @@ export function EventsView({
   };
 
   return (
-    <section className={`panel usage-events-panel usage-request-log${isCompactDefault ? ' usage-events-compact' : ''}`} aria-label={t('usage.events.title')} aria-busy={loading}>
+    <section className={`panel usage-events-panel usage-request-log${isCompactDefault ? ' usage-events-compact' : ''}${fixedRowHeight ? ' usage-row-height-fixed' : ' usage-row-height-auto'}`} aria-label={t('usage.events.title')} aria-busy={loading}>
       {loading && events.items.length === 0 ? <div className="usage-empty" role="status"><Database size={20} aria-hidden="true" /><span>{t('usage.loading')}</span></div> : events.items.length ? (
         <div ref={tableWrapRef} className="usage-table-wrap" tabIndex={0} role="region" aria-label={t('usage.events.title')}>
           <table
             className="usage-events-table"
-            style={{ width: `${totalTableWidth}px` }}
+            style={{ width: `${totalTableWidth}px`, '--usage-row-height': `${rowHeight}px` } as CSSProperties}
           >
             <colgroup>
               {visibleColumns.map((col) => (
@@ -769,19 +799,22 @@ export function EventsView({
             onClick={openColumnSettings}
             title={t('usage.events.columnSettings')}
             aria-label={t('usage.events.columnSettings')}
+            aria-haspopup="dialog"
+            aria-expanded={columnSettingsOpen}
           >
-            <Columns3Cog size={14} aria-hidden="true" />
+            <Columns3 size={16} aria-hidden="true" />
             <span>{t('usage.events.columns')}</span>
           </button>
           {isCustomized ? (
             <button
               type="button"
-              className="usage-col-reset-btn icon-only"
+              className="usage-col-reset-btn"
               onClick={resetAllWidths}
               title={t('usage.events.resetColumns')}
               aria-label={t('usage.events.resetColumns')}
             >
-              <RotateCcw size={13} aria-hidden="true" />
+              <RotateCcw size={14} aria-hidden="true" />
+              <span>{t('usage.events.resetColumns')}</span>
             </button>
           ) : null}
           <button type="button" className="usage-events-export-btn" disabled={loading || exporting || events.total === 0} onClick={() => void exportFilteredEvents()} title={t('usage.events.exportDescription')}>
@@ -820,7 +853,7 @@ export function EventsView({
           >
             <div className="usage-column-dialog-heading">
               <div>
-                <Columns3Cog size={19} aria-hidden="true" />
+                <Columns3 size={19} aria-hidden="true" />
                 <h2 id="usage-column-dialog-title">{t('usage.events.columnSettings')}</h2>
               </div>
               <button
@@ -836,6 +869,40 @@ export function EventsView({
             <p className="usage-column-dialog-description">
               {t('usage.events.columnSettingsDescription')}
             </p>
+            <section className="usage-row-height-settings" aria-labelledby="usage-row-height-title">
+              <div className="usage-row-height-heading">
+                <div>
+                  <strong id="usage-row-height-title">{t('usage.events.rowHeight.title')}</strong>
+                  <span>{t('usage.events.rowHeight.description')}</span>
+                </div>
+                <button
+                  type="button"
+                  className={`usage-settings-switch${fixedRowHeight ? ' active' : ''}`}
+                  role="switch"
+                  aria-checked={fixedRowHeight}
+                  onClick={() => updateFixedRowHeight(!fixedRowHeight)}
+                >
+                  <span aria-hidden="true" />
+                  <span>{fixedRowHeight ? t('common.enabled') : t('common.disabled')}</span>
+                </button>
+              </div>
+              <div className="usage-row-height-control">
+                <label htmlFor="usage-row-height-range">{t('usage.events.rowHeight.fixed')}</label>
+                <input
+                  id="usage-row-height-range"
+                  type="range"
+                  min={MIN_EVENT_ROW_HEIGHT}
+                  max={MAX_EVENT_ROW_HEIGHT}
+                  step="1"
+                  value={rowHeight}
+                  disabled={!fixedRowHeight}
+                  onChange={(event) => updateRowHeight(Number(event.currentTarget.value))}
+                  aria-label={t('usage.events.rowHeight.fixed')}
+                />
+                <output htmlFor="usage-row-height-range">{rowHeight}px</output>
+                <span className="usage-row-height-hint">{t('usage.events.rowHeight.dragHint')}</span>
+              </div>
+            </section>
             <div className="usage-column-options">
               {EVENT_COLUMNS.map((column) => {
                 const checked = draftVisibleColumnKeys.includes(column.key);
diff --git a/src/styles.css b/src/styles.css
index 1f21a75..d058a54 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -9622,6 +9622,97 @@ textarea:focus-visible {
   line-height: 1.5;
 }
 
+.usage-row-height-settings {
+  display: grid;
+  gap: 12px;
+  margin: 0 0 16px;
+  padding: 14px 16px;
+  border: 1px solid var(--border-color);
+  border-radius: 10px;
+  background: var(--bg-tertiary);
+}
+
+.usage-row-height-heading,
+.usage-row-height-control {
+  display: flex;
+  align-items: center;
+  gap: 12px;
+}
+
+.usage-row-height-heading {
+  justify-content: space-between;
+}
+
+.usage-row-height-heading > div {
+  display: grid;
+  gap: 3px;
+}
+
+.usage-row-height-heading strong,
+.usage-row-height-control label {
+  color: var(--text-primary);
+  font-size: var(--font-size-body);
+  font-weight: var(--font-weight-semibold);
+}
+
+.usage-row-height-heading span,
+.usage-row-height-hint {
+  color: var(--text-secondary);
+  font-size: var(--font-size-caption);
+}
+
+.usage-settings-switch {
+  display: inline-flex;
+  align-items: center;
+  gap: 7px;
+  border: 0;
+  background: transparent;
+  color: var(--text-secondary);
+  font-size: var(--font-size-caption);
+  cursor: pointer;
+}
+
+.usage-settings-switch > span:first-child {
+  position: relative;
+  width: 34px;
+  height: 20px;
+  border-radius: 999px;
+  background: var(--border-primary);
+  transition: background .15s ease;
+}
+
+.usage-settings-switch > span:first-child::after {
+  position: absolute;
+  top: 3px;
+  left: 3px;
+  width: 14px;
+  height: 14px;
+  border-radius: 50%;
+  background: #fff;
+  content: '';
+  transition: transform .15s ease;
+}
+
+.usage-settings-switch.active > span:first-child { background: var(--ui-accent); }
+.usage-settings-switch.active > span:first-child::after { transform: translateX(14px); }
+
+.usage-row-height-control {
+  flex-wrap: wrap;
+}
+
+.usage-row-height-control input[type='range'] {
+  flex: 1 1 180px;
+  accent-color: var(--ui-accent);
+}
+
+.usage-row-height-control output {
+  min-width: 42px;
+  color: var(--text-primary);
+  font-variant-numeric: tabular-nums;
+  font-size: var(--font-size-caption);
+  text-align: right;
+}
+
 .usage-column-options {
   display: grid;
   min-height: 0;
@@ -10017,6 +10108,20 @@ body.table-col-resizing * {
     grid-template-columns: 1fr;
   }
 
+  .usage-row-height-heading {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .usage-row-height-control {
+    align-items: flex-start;
+    flex-direction: column;
+  }
+
+  .usage-row-height-control input[type='range'] {
+    width: 100%;
+  }
+
   .usage-column-dialog-footer {
     align-items: stretch;
     flex-direction: column;