The invention discloses a criminal investigation actual combat intelligent training assessment system based on a VR technology and a creation method. The assessment system comprises an investigation VR host, investigation VR equipment, an assessment subsystem, a trace material evidence editor, a trainee mobile client and an investigation practical training big data platform which are connected with an investigation practical training data server. According to the invention, the technical problems of unreal investigation operation and too large operation error in a virtual scene and poor user experience are solved through binding and manufacturing of the investigation tool and the trace material evidence. In addition, the technical threshold that differentiation is difficult to realize in investigation and practical training is broken through by establishing investigation and practical training big data and establishing an investigation and practical training evaluation neural network;meanwhile, the trainees can participate in training or assessment in respective units at any time through the network, the training organization does not consume time, labor and money any more, and the manpower, material and financial costs are greatly reduced.