diff --git a/app/src/main/java/org/houxg/leamonax/adapter/NoteAdapter.java b/app/src/main/java/org/houxg/leamonax/adapter/NoteAdapter.java
index 1037435..90f245e 100644
--- a/app/src/main/java/org/houxg/leamonax/adapter/NoteAdapter.java
+++ b/app/src/main/java/org/houxg/leamonax/adapter/NoteAdapter.java
@@ -26,6 +26,7 @@ import org.houxg.leamonax.model.Notebook;
 import org.houxg.leamonax.service.NoteFileService;
 import org.houxg.leamonax.utils.FileUtils;
 import org.houxg.leamonax.utils.HtmlUtils;
+import org.houxg.leamonax.utils.StringUtils;
 import org.houxg.leamonax.utils.TimeUtils;
 import org.houxg.leamonax.widget.NoteList;
 
@@ -66,7 +67,7 @@ public class NoteAdapter extends RecyclerView.Adapter<NoteAdapter.NoteHolder> {
         if (TextUtils.isEmpty(titleKeyWord)) {
             mTitleHighlight = null;
         } else {
-            mTitleHighlight = Pattern.compile(titleKeyWord, Pattern.CASE_INSENSITIVE);
+            mTitleHighlight = Pattern.compile(StringUtils.escapeRegex(titleKeyWord), Pattern.CASE_INSENSITIVE);
         }
     }
 
diff --git a/app/src/main/java/org/houxg/leamonax/utils/StringUtils.java b/app/src/main/java/org/houxg/leamonax/utils/StringUtils.java
index 18dd36a..ea014c0 100644
--- a/app/src/main/java/org/houxg/leamonax/utils/StringUtils.java
+++ b/app/src/main/java/org/houxg/leamonax/utils/StringUtils.java
@@ -54,4 +54,21 @@ public class StringUtils {
     public interface Replacer {
         String replaceWith(String original, Object... extraData);
     }
+
+    //转义正则表达式中的几个特殊符号
+    public static String escapeRegex(String str) {
+        int length = str.length();
+        StringBuilder sbf = new StringBuilder();
+        for (int i = 0; i < length; i++) {
+            char c = str.charAt(i);
+            if (c == '*') {
+                sbf.append('\\').append(c);
+            } else if (c == '+') {
+                sbf.append('\\').append(c);
+            } else if (c == '?') {
+                sbf.append('\\').append(c);
+            }
+        }
+        return sbf.toString();
+    }
 }