The invention discloses a vehicle body data checking-evaluating system based on pedestrian protection. The system comprises a data input module for acquiring vehicle body data and establishing a vehicle body model; a pedestrian protection regulation module for establishing regulation data of different countries or regions; a geometric scribing function module for scribing a reference line for the vehicle body model according to the regulation data established by the pedestrian protection regulation module so as to determine a collision area; an engineering checking-evaluating module for checking-evaluating the vehicle body model with the determined collision area; and a output module for outputting an evaluating result of the engineering checking-evaluating module. The invention further relates to a vehicle body data checking-evaluating method based on the pedestrian protection. The vehicle body data checking-evaluating system and method based on pedestrian protection can plan out an accurate collision area according to the latest pedestrian protection regulation, and can reasonably check and evaluate the vehicle body modeling and the engine room arrangement, thereby effectively improving the processing efficiency in the pedestrian protection CAE analysis.