Disclosed are a wireless communication method, a communication apparatus and a communication system, wherein the wireless communication method comprises: a communication step, performing wireless communication based on a preset communication cycle, wherein the communication cycle comprises a communication period used for sending and receiving data and a quiet period without any communication; and an execution step, executing a non-communication operation task in the quiet period. The present invention performs communication with an external device periodically, greatly reducing device power consumption. The present invention utilizes a middle time period of the quiet period to execute a non-communication task, providing certain recovery time for a system voltage, and improving system stability. Moreover, the present invention does not perform any other operation tasks except for communication in a communication process, avoiding interruption of the communication process and decreasing of a transmission rate caused by executing other non-communication operation tasks, and ensuring stability of the communication process.