Close binaries are one kind of important stars in binary systems. These binaries are strongly interactional systems with some special physical processes, such as mass exchange, energy transfer, angular momentum loss et al. Many special features have been observed in these binaries recently，including asymmetry of light curve with O’Connell effect, variedly period changes and strong magnetic field activities like flare phenomena and flip-flop effect, et al. We are interesting at the Solar-like activities and focus on flare activities of the close binaries.