Abstract: A multi-channel collect and process system based a single-chip microcomputer as AT 89C52 is designed to acquire ecological data of anti-heat layer on the roof, which can reprocess multi-signals. The processed data can be output by a liquid crystal display and a printer,and they can be also sent to PC for statistic and analysis by RS232 interface. Practical application has demonstrated that the system had played a role in the ecological environment research with a high efficiency and stability.