The invention provides an intelligent control system for pig house environment, which belongs to the technical field of pig farm breeding equipment, including STM32 single-chip microcomputer, operation panel, sensor, input module, output module, frequency converter, variable frequency fan contactor, variable speed fan, wet curtain contact device, cooling pad, constant speed fan contactor and constant speed fan. The temperature, humidity and ammonia control parameters of the pig house environment automation control system of the present invention can be adjusted by themselves, and different houses can adjust the control range of temperature, humidity and ammonia according to the needs, so as to give pigs a suitable growth environment, Guarantee the health and growth speed of pigs, and increase the economic benefits of the farm; the system of the present invention adopts highly intelligent and humanized design, fully automatic operation control according to the set parameters, no need for on-site personnel, 24-hour all-weather operation, one-time input, benefit for ten years.