Multi-conjugate adaptive optics (MCAO) has been proved to obtain the high-resolution images with a large field of view in solar observation. In this talk, after briefly introducing the basic principle and the development status of solar MCAO, I will give the progress of MCAO research based on the 1-m New Vacuum solar Telescope (NVST) in China. A solar MCAO experiment system had been successfully developed in 2017, and the MCAO-corrected high-resolution sunspots images were acquired. After that, a new MCAO system is being developed as an a regularly operating instrument for scientific observations of the sun for the NVST.