The method for binding a sensor and an actuator can be categorized into three types: manual binding, automatic binding and semi-automatic binding. Manual binding methods increase users' operational burden when a great number of sensors and actuators are to be bound. The current hard-coded automatic binding method suffers from lack of versatility. The template-based semi-automatic binding method still requires users to input some information manually. The disclosure provides an automatic binding method, which can automatically and reasonably bind the functions of a sensor and an actuator without user input, in a sensor network comprising a plurality of sensors and actuators.