The invention relates to the technical field of police screening shooting training systems, in particular to a police multi-user interactive virtual reality screening shooting training system and an application method. The police multi-user interactive virtual reality screening shooting training system comprises a local server group, at least one single training unit and at least one teacher commanding unit, wherein the single training unit comprises a human movement data capture unit, a simulated shooting device, a first central processing unit, a communication module, a head display module and a sound effect sound-propagation module; a front-end system, a back-end system and an evaluating system are arranged in the first central processing unit; the front-end system is used for generating first visual data information under a virtual reality training environment; and the back-end system is used for logically operating and determining a three-dimensional (3D) visual information sceneof a virtual event under the corresponding virtual reality environment generated by the front-end system. According to the police multi-user interactive virtual reality screening shooting training system and the application method provided by the invention, a virtual reality technology is applied to the police screening shooting training system, so that the virtual event scene is changed and is really restored maximally, the training is real and visualized, and a training effect is effectively improved.