The invention discloses a state diversity keeping type air conditioner load cluster control strategy. The strategy includes: collecting user's air conditioner parameters to construct a state queue model; judging whether to perform demand response or not; determining a demand response time period and extracting load diversity indexes of air conditioner clusters under a baseline state at the end moment of demand response; making response strategies according to the load diversity indexes, and implementing to adjust an air conditioner set temperature to a new range; judging whether to reset the air conditioner set temperature or not; determining a set temperature reset time period and extracting diversity indexes under the baseline state at the end moment of the reset time period, making reset strategies according to the indexes, and transmitting to reset the air conditioner set temperature to an initial range. The state diversity keeping type air conditioner load cluster control strategy has advantages that load diversity of the air conditioner clusters are taken into full consideration while regulation potential is exploited, user comfort is guaranteed, and defects of current air conditioner control strategies are overcome.