Air conditioner dehumidification control method, air conditioner and air conditioning system

The invention belongs to the technical field of air conditioner control, particularly provides an air conditioner dehumidification control method, an air conditioner and an air conditioning system, and aims to solve the problem of how to dehumidify in winter by utilizing dehumidification, heating and other functions of a cooling and heating air conditioner. In order to achieve the purpose, the method comprises the steps that data such as the indoor environment temperature and the indoor environment humidity of a working space of the air conditioner are obtained, the air conditioner is controlled to enter an automatic dehumidification mode according to the data, dehumidification operation and heating operation are executed, and therefore the indoor environment humidity and the indoor environment temperature are both improved. According to the method, the heating operation is added after dehumidification is executed, the situation that the indoor environment temperature is reduced due to the dehumidification op