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STM32 is the mainstream of the embedded application, it led a group of high performance, low cost, low power consumption products. With the industry of our country, by the development of science and technology, has brought rapid economic rise at the same time, but also seriously pollute the living environment, affecting the air quality. Where is the cause of hitherto unknown attention haze which is to exceed the standard content of suspended particles in the atmosphere of the general formulation, especially PM2.5 (aerodynamic equivalent diameter less than or equal to 2.5 micron particles) was found to be the culprit behind the haze weather. Haze monitoring system using the detector and the GPRS conduction. The location of the haze situation real-time monitoring and transmission to the mobile phone terminal, after receiving the integration of the data displayed to the user, to haze monitoring and response to bad weather in advance.