diff --git a/apps/web/src/styles.css b/apps/web/src/styles.css
index 9723c8a..bd51860 100644
--- a/apps/web/src/styles.css
+++ b/apps/web/src/styles.css
@@ -92,11 +92,44 @@ input:focus-visible {
 
 .top-actions {
   display: grid;
-  grid-template-columns: 56px 1fr 40px;
+  grid-template-columns: 56px minmax(0, 1fr) auto;
   align-items: center;
   gap: 10px;
 }
 
+.header-right-actions {
+  display: flex;
+  align-items: center;
+  justify-content: flex-end;
+  gap: 6px;
+}
+
+.currency-display-toggle {
+  height: 32px;
+  display: inline-flex;
+  align-items: stretch;
+  border: 1px solid rgba(255, 255, 255, 0.28);
+  border-radius: 7px;
+  padding: 2px;
+  background: rgba(0, 0, 0, 0.12);
+}
+
+.currency-display-toggle button {
+  min-width: 32px;
+  border: 0;
+  border-radius: 5px;
+  padding: 0 6px;
+  background: transparent;
+  color: rgba(255, 255, 255, 0.72);
+  font-size: 11px;
+  font-weight: 700;
+}
+
+.currency-display-toggle button.active {
+  background: rgba(255, 255, 255, 0.92);
+  color: #24766d;
+}
+
 .participant-avatars {
   width: 56px;
   height: 40px;
diff --git a/apps/web/src/views/LedgerView.vue b/apps/web/src/views/LedgerView.vue
index 15ecfb8..f8e3772 100644
--- a/apps/web/src/views/LedgerView.vue
+++ b/apps/web/src/views/LedgerView.vue
@@ -32,6 +32,7 @@ const store = useEntryStore();
 const ledgerStore = useLedgerStore();
 const router = useRouter();
 const moreMenuOpen = ref(false);
+const showBaseCurrency = ref(true);
 const participantOpen = ref(false);
 const shareOpen = ref(false);
 const shareFeedback = ref("");
@@ -435,9 +436,15 @@ async function shareLedger() {
           <span>{{ ledgerStore.currentLedger?.name ?? "选择账本" }}</span>
           <ChevronDown :size="16" />
         </button>
-        <button v-if="ledgerStore.currentRole === 'owner'" class="icon-button header-icon" type="button" aria-label="更多" title="更多" @click.stop="moreMenuOpen = true">
-          <MoreHorizontal :size="21" />
-        </button>
+        <div class="header-right-actions">
+          <div class="currency-display-toggle" role="group" aria-label="流水金额显示方式">
+            <button type="button" :class="{ active: showBaseCurrency }" :aria-pressed="showBaseCurrency" @click="showBaseCurrency = true">本币</button>
+            <button type="button" :class="{ active: !showBaseCurrency }" :aria-pressed="!showBaseCurrency" @click="showBaseCurrency = false">原币</button>
+          </div>
+          <button v-if="ledgerStore.currentRole === 'owner'" class="icon-button header-icon" type="button" aria-label="更多" title="更多" @click.stop="moreMenuOpen = true">
+            <MoreHorizontal :size="21" />
+          </button>
+        </div>
       </div>
 
       <Transition name="more-menu">
@@ -554,13 +561,11 @@ async function shareLedger() {
           </div>
           <div class="entry-value">
             <strong :class="entry.type">
-              {{ entry.type === "expense" ? "−" : "+" }}{{ entry.baseAmount === null
-                ? formatCurrencyAmount(entry.amount, entry.currency)
-                : `¥${formatMoney(entry.baseAmount)}` }}
+              {{ entry.type === "expense" ? "−" : "+" }}{{ showBaseCurrency && entry.baseAmount !== null
+                ? `¥${formatMoney(entry.baseAmount)}`
+                : formatCurrencyAmount(entry.amount, entry.currency) }}
             </strong>
-            <span>{{ entry.currency === "CNY" || entry.baseAmount === null
-              ? formatTime(entry.occurredAt)
-              : formatCurrencyAmount(entry.amount, entry.currency) }}</span>
+            <span>{{ formatTime(entry.occurredAt) }}</span>
           </div>
         </RouterLink>
       </section>