Provided is a communication system and a communication method for use in an elevator system, which belong to the field of elevator intelligent control technologies. The communication system of the present invention comprises: a first bluetooth module mounted in an elevator landing area of the elevator system and a second bluetooth module mounted in an elevator car of the elevator system. The communication system and the communication method of the present invention can realize that a passenger completes an elevator calling operation in a completely hand-free mode, which is easy to realize and is low in cost.