With the increasing emphasis on national environmental issues, air quality has increasingly aroused peoples' discuss. Therefore, it is significantly meaningful to devise a set of monitoring for regional air quality system. This paper introduces the design of a sensor network based on air quality monitoring system. It has achieved the purpose of air quality of real-time data collection with long-distance transmission, which has the characteristics of light weight, convenient, easy to layout. The system ether adopts CC2530 SCM and the relative sensor data acquisition, or utilizes ZigBee to realize the collection of air quality data consisting of a star network. The GPRS module provides the original data by UDP protocol.