The wearable chest bullet penetration wound model is a teaching, training or research tool used to simulate gunshot trauma. The model is usually designed to be wearable and can simulate the wound characteristics caused by a bullet penetrating the chest, including entry wounds, exit wounds, internal tissue damage and bleeding effects. This type of model is widely used in medical education, first aid training, military training, and film and television special effects to help students or practitioners better understand the treatment methods of gunshot trauma and improve emergency treatment capabilities.