Injection apparatus

The utility model provides an injection apparatus, wherein a moving casing and a syringe are arranged in a protective casing, the injection rod of the syringe and the moving casing are relatively stationary, the injection syringe of the syringe and the protection casing are relatively stationary, and thereby a connecting rod is pushed and pulled by a handle to drive the moving casing to do piston movement, and the moving casing drives the injection rod of the syringe to do piston movement in the injection syringe to realize medicament extraction and injection. A hand-held mechanism is arranged at the rear portion of the protective casing, and a lighting mechanism is arranged at the front of the protective casing. According to the utility model, the advantages are provided as following: injection can be completed under the condition of insufficient light, the injection precision is raised, damage caused by falling off of the injection apparatus from the hand of a user in usage is effectively prevented, and the