The utility model provides a space -based load testing data interchange processing apparatus that many interfaces can dispose, its main processing board is mutually unidimensionally, forms by mainboard module, PCIE communication module, FPGA data processing module, external interface module, external interface module contains the interface module who adapts to a plurality of applied scenes, external interface module with FPGA data processing module connects exchange external data, after FPGA data processing module handles external data, through PCIE communication module with data interchange is carried out to the mainboard module, carries out the processing and the storage of data, external interface module can adapt to different applied scenes and dispose. The utility model discloses owing to adopt multiple external data interface, so can deal with multiple load equipment, have high compatible, nimble configuration nature and scalability.