According to the requirement of the protection equipment's local placing in the hierarchical relay protection control system and because of the problems, such as large power supply, complex link, etc., the centralized busbar protection cannot be directly placed locally. This paper puts forward a distributed busbar protection locally placing implementation scheme based on HSR ring network. In this scheme, at each interval it locally places the corresponding independent submachine to get the interval's sampling value and digital data. Using dual redundant HSR ring network to interconnect each submachine and share each data, each submachine owns whole busbar protection function and judges independently. The new interpolation synchronization technology makes the busbar protection not rely on the external clock, at the moment the bypass technology designed can reduce the complexity of operation. This busbar protection model machine has been successfully passed the professional institute's test and trial work in the substation, which verify the feasibility of this scheme.