The infrared inoculation ring sterilizer adopts an intelligent temperature controller to set the sterilization temperature according to experimental requirements, without open flame operation. The heating component adopts high-efficiency ceramic infrared heating tubes, which have the advantages of small volume, light weight, simple operation, fast heating, high temperature, and long service life; It can quickly disinfect small instruments, is not affected by external factors, improves the efficiency of experiments, and can adapt to various experimental environments. It is a capable assistant for laboratory operators at all levels of health and epidemic prevention stations, environmental monitoring stations, food hygiene supervision and inspection institutes, hospitals, biological product institutes, drug testing institutes, food factories, daily chemical factories, colleges and universities, and scientific research units.