Dangerous shooting direction warning device and dangerous shooting warning system

The invention discloses a dangerous shooting direction warning device and a dangerous shooting warning system, and belongs to the technical field of military training equipment. Comprising an optical signal receiving module, a trigger locking module and at least one light source module, and the optical signal receiving module is connected with the trigger locking module; the optical signal receiving module is used for receiving the coded optical signal sent by the light source module and sending a danger warning signal; and the trigger locking module locks the trigger after receiving the danger warning signal sent by the optical signal receiving module. The light source module is mounted on a soldier, the optical signal receiving module and the trigger locking module are mounted on a weapon, and the optical signal receiving module has a fixed optical signal receiving angle, so that as long as the weapon of a rear soldier points to a front soldier within the angle range, a trigger is locked immediately, and a