Currently, the testing and calibration of atmospheric environmental sensors heavily rely on manual operations, resulting in low efficiency and poor accuracy. To address this issue, the working principles of atmospheric environmental sensors was analyzed. Based on this, a hardware testing platform for atmospheric environmental sensors was established. It consists of vacuum pump motor, pressure controller, high and low?temperature chambers, metallic sealed chamber, standard digital thermometer, industrial computer, and the atmospheric environmental sensors to be calibrated. Additionally, an automated software testing system for atmospheric environmental conditions was designed. Controlled by an industrial computer, this system periodically samples standard environmental parameters, automatically determines stability, and records calibration parameters to fit calibration curves. Automated calibration tests were performed on temperature and pressure sensors, yielding fitting correlation coefficients of 0.994 5 and 0.996, with repeatability errors of 0.087% and 0.046%, respectively. The results validate the feasibility of the testing system. This research provides robust support for the rapid deployment of atmospheric environmental sensors and holds significant implications for advancing the application of automation technology in the measurement of atmospheric environmental parameters.