The invention relates to an air conditioner control system based on activity time. The air conditioner control system comprises a refrigeration module and a heating module, and further comprises a control processor, an image shooting module, a temperature acquisition module, a temperature control module and a timing module; the image shooting module is connected with the control processor and is used for shooting an environment image and outputting the environment image to the control processor; the temperature acquisition module is connected with the control processor and is used for acquiring the temperature in an environment and converting the temperature to a real-time environment temperature to be output to the control processor; the control processor acquires the environment image and extracts a human body image in the environment image; and the timing module is used for timing according to a first timing signal output by the control processor, and feeding back a first timing endsignal to the control processor when the first preset time timing is finished.