Abstract: This thesis structures a regional tourism development scale and efficiency evaluation index system, using linear weighting method, DEA-Malmquist index, gravity evolution trajectory and coupling coordination degree model, studying the dynamic evolution characteristics and coupling relationship of regional tourism from the dimensions of scale and efficiency by taking 14 cities and municipalities in Hunan Province as an example. The results show that: (1）In the regions with higher average annual growth rate of tourism development in Hunan province, the total factor productivity was also higher, that the temporal evolution characteristics were coupled. The spatial pattern of tourism development efficiency was different from the “unipolar-point” spatial pattern of tourism development scale by taking Changsha as the pole, which was relatively stable. The spatial pattern of tourism development efficiency was relatively balanced, its evolution was more active and frequent, and the regional units of hotspots were still gradually fixed. （2)The path of gravity movement of tourism development scale showed a characteristic of scattered movements, yet the gravity movement of tourism development efficiency was dominated by agglomeration movements, both showed a tendency that moved to the southeast direction. Based on the results that spatial overlap shortened and consistency enhanced, which shows the spatial coupling characteristic of the center of gravity changes were enhanced. (3）With the clustering of tourism development scale and efficiency hotspots, the spatial pattern of coupling coordination degree had a certain stratigraphic differentiation, but the units of medium-high coupling coordination tended to be fixed and concentrated, which rendered vertically from the Chang-Zhu-Tan urban agglomeration to the north and south sides.