diff --git a/src/core/platform/web/jquery/__test__/fn.test.js b/src/core/platform/web/jquery/__test__/fn.test.js
new file mode 100644
index 000000000..6c23271fd
--- /dev/null
+++ b/src/core/platform/web/jquery/__test__/fn.test.js
@@ -0,0 +1,64 @@
+/**
+ * @author windy
+ * @version 2.0
+ * Created by windy on 2019/12/6
+ */
+
+describe("标红test", function () {
+
+    /**
+     * test_author_windy
+     */
+    it("无多音字标红", function () {
+        var a = BI.Test.createWidget({
+            type: "bi.layout",
+        });
+        a.element.__textKeywordMarked__("无多音字", "w");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">无</span>多音字");
+        a.destroy();
+    });
+
+    /**
+     * test_author_windy
+     */
+    it("含有多音字标红", function () {
+        var a = BI.Test.createWidget({
+            type: "bi.layout",
+        });
+        a.element.__textKeywordMarked__("长期协议", "z");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">长</span>期协议");
+        a.element.__textKeywordMarked__("长期协议", "c");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">长</span>期协议");
+        a.destroy();
+    });
+
+    /**
+     * test_author_windy
+     */
+    it("多音字错位标红", function () {
+        var a = BI.Test.createWidget({
+            type: "bi.layout",
+        });
+        a.element.__textKeywordMarked__("呵呵呵", "h");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">呵</span><span class=\"bi-keyword-red-mark\">呵</span><span class=\"bi-keyword-red-mark\">呵</span>");
+        a.element.__textKeywordMarked__("呵呵呵", "hh");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">呵呵</span>呵");
+        a.element.__textKeywordMarked__("呵呵呵", "hhh");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">呵呵呵</span>");
+        a.destroy();
+    });
+
+    /**
+     * test_author_windy
+     */
+    it("原文和拼音都匹配标红", function () {
+        var a = BI.Test.createWidget({
+            type: "bi.layout",
+        });
+        a.element.__textKeywordMarked__("啊a", "a");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">啊</span><span class=\"bi-keyword-red-mark\">a</span>");
+        a.element.__textKeywordMarked__("a啊", "a");
+        expect(a.element.html()).to.equal("<span class=\"bi-keyword-red-mark\">a</span><span class=\"bi-keyword-red-mark\">啊</span>");
+        a.destroy();
+    });
+});
\ No newline at end of file
diff --git a/src/core/platform/web/jquery/fn.js b/src/core/platform/web/jquery/fn.js
index 9d94719c6..4798e90af 100644
--- a/src/core/platform/web/jquery/fn.js
+++ b/src/core/platform/web/jquery/fn.js
@@ -98,7 +98,8 @@ if (BI.jQuery) {
                     }
                 }
 
-                if (tidx >= 0) {
+                // BI-56945 场景: 对'啊a'标红, a为keyword, 此时tidx为1, pidx为0, 此时使用tidx显然'啊'就无法标红了
+                if (tidx >= 0 && pidx > tidx) {
                     // 标红的text未encode
                     this.append(BI.htmlEncode(textLeft.substr(0, tidx)));
                     this.append(BI.$("<span>").addClass("bi-keyword-red-mark")