Coherent Scattering and Imaging (CSI) endstation is one of the endstations of Shanghai Soft X-ray free eIectron laser facility. The main experimental methods of CSI include coherent diffraction imaging, fourier transform holography, small anlge x-ray scattering and other forward X-ray scattering methods. With the ultra brightness and coherence femtosecond XFEL pulses, the damage free diffraction.