Based on the allocation of resources market，the trend of China’s land supply system is to gradually expand the coverage of compensatory land use and narrow the range of land allocation It is an important cornerstone to ensure the smooth implementation of PPP projects to choose the land supply mode suitable for the characteristics of PPP projects in accordance with regulations Most lands of the PPP projects are supplied by allocation，but it has been a general trend to adopt land compensatory use for the commercial operational supporting facilities Based on the analysis of the three common operational modes of compensatory land supply for PPP projects，this paper suggested that if combined implementation mode of PPP social capital bidding and land open transaction adopted in practice，one should pay attention to the common principles and process differences in the two competitive stages，and to strengthening the work coordination between the two departments，and the afterwards asset management and asset transfer planning If the state-owned land lease mode of PPP project is adopted，one should accurately grasp the scope of application，standardize transaction method，reasonably determine lease term，and strictly implement the rent payment requirements If the investment（shareholding）method by valuating PPP project state-owned land is adopted，one should standardize the operation process，scientifically evaluate and determine the amount of state-owned capital contribution，determine lawfully the government contributor and clarify its responsibilities，rights and interests，and reasonably determine the service life，so as to promote the smooth implementation of PPP projects.