diff --git a/src/others/ime/lv_ime_pinyin.c b/src/others/ime/lv_ime_pinyin.c
index a0caf36c3..6c574c86b 100644
--- a/src/others/ime/lv_ime_pinyin.c
+++ b/src/others/ime/lv_ime_pinyin.c
@@ -923,6 +923,7 @@ static char * pinyin_search_matching(lv_obj_t * obj, char * py_str, uint16_t * c
     if(*py_str == 'i')     return NULL;
     if(*py_str == 'u')     return NULL;
     if(*py_str == 'v')     return NULL;
+    if(*py_str == ' ')     return NULL;
 
     offset = py_str[0] - 'a';
     len = lv_strlen(py_str);
@@ -964,6 +965,7 @@ static void pinyin_ime_clear_data(lv_obj_t * obj)
         }
         lv_strcpy(lv_pinyin_k9_cand_str[LV_IME_PINYIN_K9_CAND_TEXT_NUM], LV_SYMBOL_RIGHT"\0");
         lv_strcpy(lv_pinyin_k9_cand_str[LV_IME_PINYIN_K9_CAND_TEXT_NUM + 1], "\0");
+        lv_buttonmatrix_set_map(pinyin_ime->kb, (const char **)lv_btnm_def_pinyin_k9_map);
     }
 #endif
 
@@ -999,14 +1001,15 @@ static void pinyin_k9_init_data(lv_obj_t * obj)
         py_str_i++;
     }
 
-    default_kb_ctrl_k9_map[0]  = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[4]  = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[5]  = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
+    default_kb_ctrl_k9_map[0]  = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
+    default_kb_ctrl_k9_map[1]  = LV_BUTTONMATRIX_CTRL_NO_REPEAT | LV_BUTTONMATRIX_CTRL_CLICK_TRIG | 1;
+    default_kb_ctrl_k9_map[4]  = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
+    default_kb_ctrl_k9_map[5]  = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
     default_kb_ctrl_k9_map[9]  = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[10] = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[14] = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[15] = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
-    default_kb_ctrl_k9_map[LV_IME_PINYIN_K9_CAND_TEXT_NUM + 16] = LV_KEYBOARD_CTRL_BUTTON_FLAGS | 1;
+    default_kb_ctrl_k9_map[10] = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
+    default_kb_ctrl_k9_map[14] = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
+    default_kb_ctrl_k9_map[15] = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
+    default_kb_ctrl_k9_map[LV_IME_PINYIN_K9_CAND_TEXT_NUM + 16] = LV_BUTTONMATRIX_CTRL_CHECKED | 1;
 }
 
 static void pinyin_k9_get_legal_py(lv_obj_t * obj, char * k9_input, const char * py9_map[])
@@ -1120,14 +1123,16 @@ static void pinyin_k9_fill_cand(lv_obj_t * obj)
 
     ll_index = _lv_ll_get_head(&pinyin_ime->k9_legal_py_ll);
     lv_strcpy(pinyin_ime->input_char, ll_index->py_str);
+
+    for(uint8_t i = 0; i < LV_IME_PINYIN_K9_CAND_TEXT_NUM; i++) {
+        lv_strcpy(lv_pinyin_k9_cand_str[i], " ");
+    }
+
     while(ll_index) {
         if(index >= LV_IME_PINYIN_K9_CAND_TEXT_NUM)
             break;
 
-        if(index >= pinyin_ime->k9_legal_py_count) {
-            lv_strcpy(lv_pinyin_k9_cand_str[index], " ");
-        }
-        else {
+        if(index < pinyin_ime->k9_legal_py_count) {
             lv_strcpy(lv_pinyin_k9_cand_str[index], ll_index->py_str);
         }
 
@@ -1171,6 +1176,10 @@ static void pinyin_k9_cand_page_proc(lv_obj_t * obj, uint16_t dir)
 
         // next page
         if(dir == 1) {
+            for(uint8_t i = 0; i < LV_IME_PINYIN_K9_CAND_TEXT_NUM; i++) {
+                lv_strcpy(lv_pinyin_k9_cand_str[i], " ");
+            }
+
             count = 0;
             while(ll_index) {
                 if(count >= (LV_IME_PINYIN_K9_CAND_TEXT_NUM - 1))
@@ -1185,6 +1194,9 @@ static void pinyin_k9_cand_page_proc(lv_obj_t * obj, uint16_t dir)
         }
         // previous page
         else {
+            for(uint8_t i = 0; i < LV_IME_PINYIN_K9_CAND_TEXT_NUM; i++) {
+                lv_strcpy(lv_pinyin_k9_cand_str[i], " ");
+            }
             count = LV_IME_PINYIN_K9_CAND_TEXT_NUM - 1;
             ll_index = _lv_ll_get_prev(&pinyin_ime->k9_legal_py_ll, ll_index);
             while(ll_index) {