Hanjie Tan (Astronomical Institute of Charles University), Mi Zhang, Guoyou Sun, Jingyuan Zhao (Xingming Observatory), Quanzhi Ye (Department of Astronomy, University of Maryland), Xing Gao (Xingming Observatory), report the discovery of a possible cataclysmic variables at 13.55 Gmag on several 120-s survey image (limit mag about 19.0) taken by Xing Gao at Xingming Observatory #3 (N88) around Oct.15.80976 UTC using unfiltered CCD and PAT telescope (0.3-m f/3.6 reflector). The transient approximately located at RA= 01h26m51.62s,DEC = +50d12m58.6s. Discovery images can be found at: http://xjltp.china-vo.org/xm78ht.html