Three Unique Collections of Late Ming Drama Preserved Abroad are Yue Fu Yu Shu Ying, Yue Fu Wen Xiang Hsin and Ta Ming Tien Chia Chun in single play collection of Ming Wen Li discovered by Lee Fu-ching, Russian Sinologistin Europe. Gun Chang is the poetic singing in Qu Pai. Dramas indicated as Gun Chang in Three Unique Collections of Late Ming Drama Preserved Abroad are Wu Gui Ji andPi Pa Ji, including four play Ting Pu Guan Bang, Zhuang Yuan Chia Guan Ching Lu, Niu Shih Gao Wen Yao Ching, Niu Shih Ju Fu Wen Ta and six kinds of Qu Pai, "Ti Yin Deng Men", "Ku Lun Tai", "Hung Na Ao", "Jiang Tao Chin Kuei", "Tai Ping Song" and "Cheng Jen Hsin". Although Shu Guan Tao Meng in NewPi Pa Jiis not marked with Qu Pai of Gun Chang, it was the added innovative play of Gun Diao in the original Pi Pa Ji. We can observe Gun Diao authors' methods to develop Gun Chang by Qu Pai and Qu Tao. By comparison of versions and scores and theoretical analysis of rules & forms of north and south songs, this study probes into relationship between Gun Chang and Qu Pai of Gun Diao plays of Wu Gui Ji and Pi Pa Ji to generalize the rules of Gun Chang.