High or low temperature and humidity will stop or slow down the growth of crops in agricultural greenhouses. Therefore, it is crucial to keep temperature and humidity within the suitable range for crop growth. Automatic temperature and humidity collection monitoring mode should be adopted in the modern agricultural greenhouses to regulate the temperature and humidity of agricultural greenhouses, in order to adapt to large-scale production. The whole system consists of MCU and its peripheral circuit as well as wireless transmission module. The MCU and its peripheral circuit are mainly composed of MCU, temperature and humidity sensors and human-computer interaction. The temperature and humidity data are collected by temperature and humidity sensors and processed by MCU, and then are transmitted to the host through 433 MHz wireless module, so the machine equipment is controlled by the host.