A data management software system is introduced, which is designed for environmental optical monitoring instrument networking based on the BS and CS architecture. The .Net and J2ee technology are integrated to complete the development of the data acquisition module and server management module, .Net reflection mechanism is used to realize the loose-coupling-hot-plug devices communication, a variety of communications equipment access problems are solved in the system. The goal of quality control and data management of the environmental optical monitoring instrument which installed in the same area is realized based on the data management software system. The role of the environmental optical monitoring instrument role is maximized in air pollution monitoring and control.