Injection needle disinfection can be sterilized with alcohol, boiling method, autoclave sterilization, etc. The details are as follows: 1. Alcohol sterilization: 75% of medical alcohol can be used to wipe the injection needle to play a disinfection role. Ethanol has an osmotic effect, it can absorb the protein water in the bacterial virus, so that the bacteria dehydration and thus denaturation coagulation to kill bacteria. 2. Boiling method: boiling water to 100 degrees, and last 15 to 20 minutes, can kill the general bacteria, want to kill the bacteria with spores need to be boiled for an hour. 3. High-pressure steam sterilization method: the use of under-vented sterilizer, should be set to 121 ℃, 102.9kPa, time for 30 minutes, when the high-pressure steam to reach a certain temperature and time, can kill all microorganisms, including bacterial spores, including the tenacious resistance. Injection needles are usually single-use, it is best not to sterilize them for re-use, and try to use new injection needles.