The invention discloses an automatic injection pump. The automatic injection pump comprises an injection pump body, wherein the injection pump body comprises a controller and a plurality of groups of actuating mechanisms and injectors, and the injectors are respectively filled with epinephrine, anti-ventricular fibrillation or pulseless ventricular tachycardia drug amiodarone and normal saline. The controller can control the actuating mechanisms to drive the epinephrine injectors to inject once every 3-5 minutes, can control the actuating mechanisms to drive the amiodarone injectors to inject, and can control the actuating mechanisms to drive the injectors filled with normal saline to inject once after medicine injection is completed every time. The automatic injection pump further comprises an operation panel, wherein an epinephrine starting button and an amiodarone starting button are arranged on the operation panel. According to the automatic injection pump, through automatic control of an automatic process, injection in a specified process can be accurately and automatically carried out or is manually carried out upon reminding, and rescue medicine can be well injected instead of manual operation; and meanwhile, the injection process can be automatically or manually started upon a reminding according to changes in vital signs of a patient.