Abstract: In this paper,PVsyst software is used for modeling and simulation,and the power generation characteristics of the PV power generation system combining bifacial PV modules and horizontal single-axis PV tracker（hereinafter referred to as“PV bifacial tracking power generation system”） are studied and analyzed.The influence of different parameter combination transformation on the power generation gain ratio of PV bifacial tracking power generation system is analyzed from the perspective of three parameters of ground coverage ratio（GCR）,installation height of PV modules,and ground reflectivity. The results show that increasing ground reflectivity or decreasing the value of GCR（i.e. increasing the spacing between PV arrays） can effectively increase the power generation gain ratio of PV bifacial tracking power generation system while keeping other parameters unchanged. At the same time,increasing ground reflectivity and reducing the value of GCR can greatly increase the power generation gain ratio of PV bifacial tracking power generation system. While other parameters remain unchanged,increasing the installation height of PV modules can only slightly increase the power generation gain ratio of PV bifacial tracking power generation system. Finally,comprehensive suggestions on parameter setting are given,which can provide reference for the practical application of this kind of PV power generation project.