Automatic injection device for injecting injection into multiple parts

The invention discloses an automatic injection device for injecting injection into multiple parts. An injector support is movably provided with an injector, a handle is mounted at the bottom of the injector support, an automatic switch is arranged on one side of the handle, the other side of the handle is provided with a main body, an injector transfer tool is mounted at the bottom of the injectorsupport, and an injector piston and a piston transfer tool are installed in the main body. A detachable battery is mounted on the handle portion of the main body, and a control and display tool is arranged on the back of the main body. Compared with the prior art, the automatic injection device has the advantage that under the operation of the injector transfer tool and the piston transfer tool of the automatic injection device, when a needle is pulled out from the skin, a driving motor of the piston transfer tool rotates reversely first to ensure that the high-price injection in the injectordoes not flow out, so tha