In response to the needs of modern greenhouse planting technology, a design that can monitor the temperature and humidity changes in the greenhouse in real time, and display the results on the computer in real time, so that users can always understand the changes in temperature and humidity inside the greenhouse. The system uses DS18B20 to collect temperature data; uses HR202L to collect humidity data, uses XC7Z020 as the logic control core to frame the collected temperature and humidity data, and sends the processed data to the Qt host computer through the serial bus, and Qt processes the received data. Visual processing, real-time display of the temperature and humidity changes in the greenhouse in the form of an interface, and corresponding adjustments to the temperature and humidity in the greenhouse according to the threshold set in advance. Experiments show that compared with traditional human labor, the system can effectively reduce costs, increase the yield of crops in the greenhouse, and increase people's economic benefits.