A communication device for handling a measurement configuration in a dual connectivity comprises at least one storage device for storing instructions and at least one processing circuit coupled to the at least one storage device. The at least one processing circuit is configured to execute the instructions stored in the at least one storage device. The instructions comprise establishing a first SRB; being configured a first measurement configuration by a first BS; transmitting a first measurement report to the first BS; receiving a first RRC message from the first BS; establishing a second SRB; being configured a second measurement configuration by a second BS; transmitting a second measurement report to the second BS; detecting a first failure on a first connection with the first BS; and releasing the second measurement configuration in response to the first failure on the first connection with the first BS.