diff --git a/index.html b/index.html
index d0ab1d9..335294b 100755
--- a/index.html
+++ b/index.html
@@ -49,7 +49,9 @@
     .filter-group { display: grid; gap: 5px; }
     .filter-group > span, .filter-group > label { color: var(--muted); font-size: 13px; }
     .filter-group input, .filter-group select { min-height: 36px; padding: 6px 9px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); font: inherit; }
+    .filter-group select[multiple] { min-width: 220px; min-height: 96px; }
     .filter-group select:disabled { background: #f1f4f8; color: var(--muted); }
+    .filter-help { color: var(--muted); font-size: 12px; }
     .range-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
     .range-button { min-height: 36px; padding: 6px 11px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); cursor: pointer; font: inherit; }
     .range-button:hover, .range-button:focus, .range-button[data-active="true"] { border-color: var(--primary); color: var(--primary); }
@@ -123,6 +125,11 @@
           <label for="end-date">结束日期</label>
           <input id="end-date" type="date">
         </div>
+        <div class="filter-group">
+          <label for="link-name-select">LinkName</label>
+          <select id="link-name-select" multiple size="4" disabled aria-describedby="link-name-summary"></select>
+          <span class="filter-help" id="link-name-summary" aria-live="polite">无可选 LinkName</span>
+        </div>
         <div class="currency-help" id="currency-help"></div>
       </div>
       <div class="rate-info" id="rate-info">
@@ -188,6 +195,8 @@
         currencyHelp: document.getElementById('currency-help'),
         startDate: document.getElementById('start-date'),
         endDate: document.getElementById('end-date'),
+        linkName: document.getElementById('link-name-select'),
+        linkNameSummary: document.getElementById('link-name-summary'),
         rangeButtons: Array.from(document.querySelectorAll('[data-range]')),
         rateStatus: document.getElementById('rate-status'),
         metrics: document.getElementById('metrics'),
@@ -213,7 +222,8 @@
         dateOnlyRows: 0,
         invalidCurrencyRows: 0,
         syncLog: null,
-        syncLogUnavailable: false
+        syncLogUnavailable: false,
+        selectedLinkNames: new Set()
       };
 
       function setStatus(message, status) {
@@ -414,6 +424,43 @@
         return { start: start.time, end: end.time };
       }
 
+      function updateLinkNameSummary() {
+        var total = elements.linkName.options.length;
+        var selected = elements.linkName.selectedOptions.length;
+        if (!total) {
+          elements.linkNameSummary.textContent = '无可选 LinkName';
+        } else if (selected === total) {
+          elements.linkNameSummary.textContent = '全部 LinkName（' + formatNumber(total) + '）';
+        } else {
+          elements.linkNameSummary.textContent = '已选 ' + formatNumber(selected) + ' / ' + formatNumber(total) + ' 个 LinkName';
+        }
+      }
+
+      function updateLinkNameOptions() {
+        var available = [];
+        try {
+          var range = currentRange();
+          available = Array.from(new Set(state.rawRecords.filter(function (record) {
+            return record.date.time >= range.start && record.date.time <= range.end;
+          }).map(function (record) { return record.linkName; }))).sort(function (a, b) {
+            return a.localeCompare(b);
+          });
+        } catch (error) {
+          available = [];
+        }
+        elements.linkName.replaceChildren();
+        available.forEach(function (linkName) {
+          var option = document.createElement('option');
+          option.value = linkName;
+          option.textContent = linkName;
+          option.selected = true;
+          elements.linkName.appendChild(option);
+        });
+        state.selectedLinkNames = new Set(available);
+        elements.linkName.disabled = available.length === 0;
+        updateLinkNameSummary();
+      }
+
       function needsRates() {
         return state.rawRecords.some(function (record) { return record.currency !== state.selectedCurrency; });
       }
@@ -599,7 +646,9 @@
         setStatus(needsRates() ? '正在准备汇率与图表…' : '正在准备图表…', 'loading');
         convertedRecords().then(function (records) {
           if (token !== renderToken) return;
-          var filtered = records.filter(function (record) { return record.date.time >= range.start && record.date.time <= range.end; });
+          var filtered = records.filter(function (record) {
+            return record.date.time >= range.start && record.date.time <= range.end && state.selectedLinkNames.has(record.linkName);
+          });
           updateSummary(filtered);
           elements.error.hidden = true;
           elements.metrics.hidden = false;
@@ -637,6 +686,7 @@
           elements.filters.hidden = false;
           updateCurrencyOptions();
           updateRangeInputs();
+          updateLinkNameOptions();
           if (!state.rawRecords.length) { showEmpty('没有可展示的有效数据。'); return; }
           renderCurrentView();
         }).catch(showError);
@@ -646,16 +696,25 @@
         state.selectedCurrency = elements.currency.value;
         renderCurrentView();
       });
+      elements.linkName.addEventListener('change', function () {
+        state.selectedLinkNames = new Set(Array.from(elements.linkName.selectedOptions).map(function (option) {
+          return option.value;
+        }));
+        updateLinkNameSummary();
+        renderCurrentView();
+      });
       elements.startDate.addEventListener('change', function () {
         elements.rangeButtons.forEach(function (button) { button.dataset.active = 'false'; });
+        updateLinkNameOptions();
         renderCurrentView();
       });
       elements.endDate.addEventListener('change', function () {
         elements.rangeButtons.forEach(function (button) { button.dataset.active = 'false'; });
+        updateLinkNameOptions();
         renderCurrentView();
       });
       elements.rangeButtons.forEach(function (button) {
-        button.addEventListener('click', function () { setRange(button.dataset.range); renderCurrentView(); });
+        button.addEventListener('click', function () { setRange(button.dataset.range); updateLinkNameOptions(); renderCurrentView(); });
       });
       window.addEventListener('resize', function () { charts.forEach(function (chart) { chart.resize(); }); });
       loadData();