Affected by various factors, there exist certain errors and uncertainties during the retrieval of atmospheric compositions from satellite data. Systematic and comprehensive validation work is very important to obtain accurate and reliable satellite data. The validation of satellite data is mainly related to two parts of contents: one is the validation of the input parameters used in the retrieval algorithm, and the other is the direct validation of satellite retrieval products. In the work, we firstly reviewed the validation demands when obtaining the tropospheric NO2 satellite data and the current status of the atmosphere background observation stations in China, and then discussed the role of the latter might play in satellite data validation. Accurate surface observations at regional background stations and their good regional representations are beneficial for the validation of satellite data. The capability of vertical measurements of atmospheric physical and chemical properties can strengthen the ability for the accurate and quantified validation of satellite data. Therefore, we strongly recommend that some new technologies and technical equipments which can help the validation work should reserve in advance.