diff --git a/components/bt/bluedroid/btc/core/btc_config.c b/components/bt/bluedroid/btc/core/btc_config.c
index 9249cfd8f..7b733ae7b 100644
--- a/components/bt/bluedroid/btc/core/btc_config.c
+++ b/components/bt/bluedroid/btc/core/btc_config.c
@@ -32,7 +32,7 @@
 static const char *CONFIG_FILE_PATH = "bt_config.conf";
 static const period_ms_t CONFIG_SETTLE_PERIOD_MS = 3000;
 
-static void btc_key_value_to_string(uint8_t *key_vaule, char *value_str, int key_length);
+static void btc_key_value_to_string(uint8_t *key_value, char *value_str, int key_length);
 static osi_mutex_t lock;  // protects operations on |config|.
 static config_t *config;
 
@@ -51,16 +51,16 @@ bool btc_compare_address_key_value(const char *section, char *key_type, void *ke
     return status;
 }
 
-static void btc_key_value_to_string(uint8_t *key_vaule, char *value_str, int key_length)
+static void btc_key_value_to_string(uint8_t *key_value, char *value_str, int key_length)
 {
     const char *lookup = "0123456789abcdef";
 
-    assert(key_vaule != NULL);
+    assert(key_value != NULL);
     assert(value_str != NULL);
 
     for (size_t i = 0; i < key_length; ++i) {
-        value_str[(i * 2) + 0] = lookup[(key_vaule[i] >> 4) & 0x0F];
-        value_str[(i * 2) + 1] = lookup[key_vaule[i] & 0x0F];
+        value_str[(i * 2) + 0] = lookup[(key_value[i] >> 4) & 0x0F];
+        value_str[(i * 2) + 1] = lookup[key_value[i] & 0x0F];
     }
 
     return;
diff --git a/components/bt/bluedroid/btc/profile/std/gatt/btc_gatts.c b/components/bt/bluedroid/btc/profile/std/gatt/btc_gatts.c
index 4ea69a547..c9d759e2c 100644
--- a/components/bt/bluedroid/btc/profile/std/gatt/btc_gatts.c
+++ b/components/bt/bluedroid/btc/profile/std/gatt/btc_gatts.c
@@ -404,7 +404,7 @@ static void btc_gatts_act_create_attr_tab(esp_gatts_attr_db_t *gatts_attr_db,
     //reset the env after sent the data to app
     memset(&btc_creat_tab_env, 0, sizeof(esp_btc_creat_tab_t));
 
-    //release the flag vaule to false after finish the service created.
+    //set the flag value to false after the service is created.
     btc_creat_tab_env.is_tab_creat_svc = false;
 }
 
diff --git a/components/bt/bluedroid/stack/gatt/gatt_db.c b/components/bt/bluedroid/stack/gatt/gatt_db.c
index 91a46c6a6..ec552d7bf 100644
--- a/components/bt/bluedroid/stack/gatt/gatt_db.c
+++ b/components/bt/bluedroid/stack/gatt/gatt_db.c
@@ -794,7 +794,7 @@ tGATT_STATUS gatts_get_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
                         *value = p_cur->p_value->attr_val.attr_val;
                         return GATT_SUCCESS;
                     } else {
-                        GATT_TRACE_ERROR("gatts_get_attribute_vaule failt:the value length is 0");
+                        GATT_TRACE_ERROR("gatts_get_attribute_value failed:the value length is 0");
                         return GATT_INVALID_ATTR_LEN;
                     }
                     break;
@@ -805,7 +805,7 @@ tGATT_STATUS gatts_get_attribute_value(tGATT_SVC_DB *p_db, UINT16 attr_handle,
                     *value = p_cur->p_value->attr_val.attr_val;
                     return GATT_SUCCESS;
                 } else {
-                    GATT_TRACE_ERROR("gatts_get_attribute_vaule failed:the value length is 0");
+                    GATT_TRACE_ERROR("gatts_get_attribute_value failed:the value length is 0");
                     return GATT_INVALID_ATTR_LEN;
                 }