Environment control method and device of machine room and environment control system of machine room

The invention discloses an environment control method and device of a machine room and an environment control system of the machine room. The method comprises the steps that environment information of a machine room is obtained, and the machine room is used for containing communication equipment; the category of the machine room is determined, and the category of the machine room is comprehensively determined at least according to the multi-dimensional attribute information of the machine room; control strategies corresponding to the machine rooms are determined according to the types of the machine rooms and the environment information of the machine rooms, and the control strategies corresponding to different types of machine rooms are different; and sending a control instruction corresponding to the control strategy to refrigeration equipment in the machine room so as to control environment information of the machine room. The technical problems that due to the fact that the air conditioner types of all th