Faint natural satellites have the characteristics of lower brightness and faster movement variation when they are compared with those of Main Belt Asteroids. When observing such satellites, one cannot simply increase the time of exposure to improve their signal-to-noise ratio (SNR). We attempt to obtain multiple short-exposure images and use the shift-and-add method to improve the SNR of target, and then obtain accurate measurement results of faint satellites. The 229 CCD (charge-coupled device) frames of Jupiter's 5 faint satellites that we obtained by the 1m telescope at Yunnan Obervatories, Chinese Academy of Sciences (1m telescope) on April 9---12, 2018 are used to carry out the CCD image shift-and-add experiment. And we use the CCD images of the same satellites obtained by the 2.4m telescope at Yunnan Obervatories, Chinese Academy of Sciences (2.4m telescope) to verify the correctness of the result. The theoretical positions of the satellites are retrived from the JPL (Jet Propulsion Laboratory) ephemeris. Our results show that using this method, the 1m telescope of Yunnan Observatories can observe the satellites as faint as about 19 magnitudes, and their accuracies are in good agreement with the corresponding results derived by the 2.4m telescope.