The invention provides a running control method and device of an air conditioner and an air conditioner system. The air conditioner comprises an outdoor unit shell, an air inlet, an air outlet, and an air flue communicating the air inlet with the air outlet are defined by the shell, and a draught fan and a heat exchanger are arranged in the air flue. The running control method comprises following steps: a morphological image of a target user using a target air conditioner is collected, the morphological image of the target user is subject to image identification, characteristic information of the target user is obtained, according to all reference air conditioners in the area range where the target air conditioner is located, reference users matched with the characteristic information are inquired from users using the reference air conditioners, according to historical control parameters set by the reference users, target control parameters are calculated, and the target control parameters are used for controlling the target air conditioner. According to the method, the control operation of the air conditioner is simplified, and use convenience of the air conditioner is improved.