As for the problems like single control mode and unavailable longrange wireless control, a wireless greenhouse control system based on STM32F103RBT6 MCU and Internet of Things is designed. The system collects temperature, humidity, CO2 concentration and other information through the NRF905 wireless transmission module to the STM32 master control system. After the system temperature, humidity, CO2 concentration exceeds the limit, the system sends the information to the user remotely through the GSM module. At the same time, the relay module is controlled to regulate the environment of the greenhouse through the Bluetooth wireless transmission. Through the field test, the system can control the greenhouse equipment according to the onthespot environmental information, which fully proves the reliability and the feasibility of the system.