diff --git a/packages/mobile/App.tsx b/packages/mobile/App.tsx
index 1c10681..02481dd 100644
--- a/packages/mobile/App.tsx
+++ b/packages/mobile/App.tsx
@@ -6,6 +6,7 @@ import { createBottomTabNavigator } from '@react-navigation/bottom-tabs'
 import AgendaScreen from './src/screens/AgendaScreen'
 import IceBreakerScreen from './src/screens/IceBreakerScreen'
 import ShuffleScreen from './src/screens/ShuffleScreen'
+import NotesScreen from './src/screens/NotesScreen'
 
 const Tab = createBottomTabNavigator()
 
@@ -104,6 +105,17 @@ export default function App() {
               ),
             }}
           />
+
+          <Tab.Screen
+            name="Notes"
+            component={NotesScreen}
+            options={{
+              tabBarLabel: '議事録',
+              tabBarIcon: ({ focused }) => (
+                <TabIcon label="📝" focused={focused} />
+              ),
+            }}
+          />
         </Tab.Navigator>
       </NavigationContainer>
     </SafeAreaProvider>
diff --git a/packages/mobile/src/screens/NotesScreen.tsx b/packages/mobile/src/screens/NotesScreen.tsx
new file mode 100644
index 0000000..eed8ae6
--- /dev/null
+++ b/packages/mobile/src/screens/NotesScreen.tsx
@@ -0,0 +1,218 @@
+import React, { useMemo, useState } from 'react'
+import {
+  View,
+  Text,
+  TextInput,
+  TouchableOpacity,
+  ScrollView,
+  StyleSheet,
+  Share,
+} from 'react-native'
+import { theme } from '../styles/theme'
+
+function toLines(text: string): string[] {
+  return text
+    .split('\n')
+    .map(line => line.trim())
+    .filter(Boolean)
+}
+
+function buildNotes(notes: string, members: string): string {
+  const lines = toLines(notes)
+  const memberList = members
+    .split(/[、,\n]/)
+    .map(s => s.trim())
+    .filter(Boolean)
+
+  const actionCandidates = lines.filter(
+    line =>
+      /TODO|やる|対応|確認|fix|実装|review|テスト|連絡|提出|作成|調査/i.test(line)
+  )
+  const summarySource = lines.slice(0, 2).join(' / ') || '朝会メモをもとに議論内容を整理しました。'
+  const actions = actionCandidates.length > 0 ? actionCandidates : lines.slice(0, 3)
+
+  const decisions = lines.filter(line => /決定|合意|採用|方針|決ま/i.test(line))
+  const nextSteps = lines.filter(line => /次|明日|来週|予定|継続|準備/i.test(line))
+
+  return [
+    '## サマリー',
+    summarySource,
+    '',
+    '## 参加メンバー',
+    ...(memberList.length > 0 ? memberList.map(name => `- ${name}`) : ['- （未入力）']),
+    '',
+    '## アクションアイテム',
+    ...actions.map(item => `- [ ] ${item}`),
+    '',
+    '## 決定事項',
+    ...(decisions.length > 0 ? decisions.map(item => `- ${item}`) : ['- （明確な決定事項なし）']),
+    '',
+    '## 次のステップ',
+    ...(nextSteps.length > 0 ? nextSteps.map(item => `- ${item}`) : ['- 進捗確認を次回朝会で実施']),
+  ].join('\n')
+}
+
+export default function NotesScreen() {
+  const [notes, setNotes] = useState('')
+  const [members, setMembers] = useState('')
+  const [generated, setGenerated] = useState<string | null>(null)
+
+  const isReady = useMemo(() => notes.trim().length > 0, [notes])
+
+  const handleGenerate = () => {
+    if (!isReady) return
+    setGenerated(buildNotes(notes, members))
+  }
+
+  const handleShare = async () => {
+    if (!generated) return
+    await Share.share({ message: generated })
+  }
+
+  return (
+    <ScrollView style={styles.container} contentContainerStyle={styles.content}>
+      <Text style={styles.title}>📝 議事録</Text>
+
+      {!generated ? (
+        <View style={styles.inputArea}>
+          <TextInput
+            style={styles.notesInput}
+            placeholder={'朝会メモを入力\n例: 田中: APIテスト完了、明日は結合確認'}
+            placeholderTextColor={theme.textMuted}
+            value={notes}
+            onChangeText={setNotes}
+            multiline
+            numberOfLines={8}
+          />
+          <TextInput
+            style={styles.membersInput}
+            placeholder={'参加メンバー（カンマ区切り）'}
+            placeholderTextColor={theme.textMuted}
+            value={members}
+            onChangeText={setMembers}
+          />
+
+          <TouchableOpacity
+            style={[styles.btnPrimary, !isReady && styles.btnDisabled]}
+            onPress={handleGenerate}
+            disabled={!isReady}
+          >
+            <Text style={styles.btnPrimaryText}>構造化して作成</Text>
+          </TouchableOpacity>
+        </View>
+      ) : (
+        <>
+          <View style={styles.resultCard}>
+            {generated.split('\n').map((line, index) => (
+              <Text key={index} style={line.startsWith('##') ? styles.heading : styles.line}>
+                {line}
+              </Text>
+            ))}
+          </View>
+
+          <View style={styles.controls}>
+            <TouchableOpacity style={styles.btnPrimary} onPress={handleShare}>
+              <Text style={styles.btnPrimaryText}>共有</Text>
+            </TouchableOpacity>
+            <TouchableOpacity style={styles.btnSecondary} onPress={() => setGenerated(null)}>
+              <Text style={styles.btnSecondaryText}>やり直す</Text>
+            </TouchableOpacity>
+          </View>
+        </>
+      )}
+    </ScrollView>
+  )
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: theme.bg,
+  },
+  content: {
+    padding: 16,
+  },
+  title: {
+    fontSize: 20,
+    fontWeight: '700',
+    color: theme.text,
+    marginBottom: 16,
+  },
+  inputArea: {
+    gap: 12,
+  },
+  notesInput: {
+    backgroundColor: theme.surface,
+    borderWidth: 1,
+    borderColor: theme.border,
+    borderRadius: theme.radius,
+    color: theme.text,
+    fontSize: 16,
+    padding: 14,
+    minHeight: 180,
+    textAlignVertical: 'top',
+  },
+  membersInput: {
+    backgroundColor: theme.surface,
+    borderWidth: 1,
+    borderColor: theme.border,
+    borderRadius: theme.radius,
+    color: theme.text,
+    fontSize: 16,
+    padding: 14,
+  },
+  resultCard: {
+    backgroundColor: theme.surface,
+    borderWidth: 1,
+    borderColor: theme.border,
+    borderRadius: theme.radius,
+    padding: 14,
+    gap: 8,
+    marginBottom: 12,
+  },
+  heading: {
+    color: theme.primary,
+    fontSize: 16,
+    fontWeight: '700',
+    marginTop: 6,
+  },
+  line: {
+    color: theme.text,
+    lineHeight: 22,
+  },
+  controls: {
+    flexDirection: 'row',
+    gap: 8,
+  },
+  btnPrimary: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    padding: 14,
+    backgroundColor: theme.primary,
+    borderRadius: theme.radius,
+  },
+  btnPrimaryText: {
+    fontWeight: '600',
+    fontSize: 16,
+    color: '#000',
+  },
+  btnSecondary: {
+    flex: 1,
+    alignItems: 'center',
+    justifyContent: 'center',
+    padding: 14,
+    backgroundColor: theme.surface,
+    borderRadius: theme.radius,
+    borderWidth: 1,
+    borderColor: theme.border,
+  },
+  btnSecondaryText: {
+    fontWeight: '600',
+    fontSize: 16,
+    color: theme.text,
+  },
+  btnDisabled: {
+    opacity: 0.5,
+  },
+})