diff --git a/frameworks/core/components_ng/pattern/text/text_pattern.cpp b/frameworks/core/components_ng/pattern/text/text_pattern.cpp
index 5cfeb60d1136773be1d9df3bf3d7cab57a99bce5..8a378af1d6d2e86b510aa55d62103cf10403ac9e 100644
--- a/frameworks/core/components_ng/pattern/text/text_pattern.cpp
+++ b/frameworks/core/components_ng/pattern/text/text_pattern.cpp
@@ -926,7 +926,7 @@ bool TextPattern::IsShowSearch()
 
 void TextPattern::InitLongPressEvent(const RefPtr<GestureEventHub>& gestureHub)
 {
-    constexpr int32_t longPressDelay = 600;
+    constexpr int32_t longPressDelay = 600; // unit is ms
     if (longPressEvent_) {
         gestureHub->SetLongPressEvent(longPressEvent_, false, false, longPressDelay);
         return;