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Abstract: Due to spatial heterogeneity and temporal non-stationarity, urban expansion models are often only applicable locally. This paper proposes a similarity law-based method for transferability of urban expansion model. The method utilizes the geographically optimal similarity (GOS) model to realize the transfer of the transition rules based on the similarity of geographical configurations. The model is applied to the Beijing-Tianjin-Hebei region for empirical analysis, the results show that (1) The proposed method can better capture the shift of urban expansion strategies during validation period. The figure of merit (FoM) of results using the local transition rules is on average 0.010 higher and the fuzzy similarity of different (FSD) is on average 0.025 higher than those using the transition rules transfer from Beijing in calibration period, but in validation period the FoM is on average 0.018 lower and the FSD is on average 0.033 lower. (2) The similarity of urban expansion strategies varies among different cities, selecting appropriate cities for the transfer of transition rule can make the results of proposed method perform better. For example, during validation period, in Shijiazhuang, the transition rule transferred from Beijing is preferable to that transferred from Xingtai, while in Handan and Hengshui, it is opposite.