Satellite borne Solar Backscatter Ultraviolet Spectrometer (SBUS) which is independently developed for the first time in China has been put into use in-orbit. A significance change on research and detection of atmospheric ozone in china is brought by this. On the basis of the description for the working mode of SBUS

the analysis of the run task in-orbit is made and an introduction about the important points of software is explained in detail. The data of remote sensing measured in-orbit with solar/ atmospheric working mode are given. The results show that SBUS are working normally in-orbit

and measurement modes are implementing correctly

and the control parameters are valid. All functions of the embedded software are achievement and meet the requirements of application.