Yaogan-21 remote sensing satellite was launched into preset orbit from Taiyuan Satellite Launch Centre at 11:22 am local time.
During the mission, another satellite Tiantuo-1, designed and built by the National University of Defence Technology, was launched.
The two satellites were shot into orbit by Long March-4B rocket, state-run Xinhua news agency reported.
Yaogan-21 will be used for scientific experiments, natural resource survey, estimation of crop yield and disaster relief, while Tiantuo-1 was designed for smart satellite experiments.
The launch is the 193rd mission for the Long March rocket family.