For the traditional infusion device, it requires the medical staff to patrol and adjust the drip speed manually by the experience in the process of injection, existing fluid replaced or emergency found not timely and other problems. A security protection system including multiple slaves and host whose cores are ARM processor is designed, taking APP as the remote monitoring terminal. The system transmits the information such as drip speed and liquid level measured by the camera of multiple slaves to the host and APP to display orderly. The host and APP can control the servo motors on site and in the distance respectively, then the drop rate is precisely adjusted. The system can accurately detect multiple infusion devices and alarm the emergency situation timely, medical staff can set a reasonable drip speed through the host and APP. The results of experiments show that drip speed is automatically adjusted rapidly and accurately, and infusion information can be monitored in real time. The system can reduce the workload of medical staff and effectively improve the safety factor of infusion.