Beauty needle automatic injection control method and device and beauty needle

The invention relates to an injection control method and device, and discloses a beauty needle automatic injection control method and device and a beauty needle. According to the beauty needle automatic injection control method and device and the beauty needle, the medicine injection pressure is controlled within a preset range, the skin adsorption pressure fluctuation is controlled to tighten andloosen the skin repeatedly, medicine injection is facilitated, and the swelling pain feeling of an operated person is reduced; and the injection process is automatically started through negative pressure induction, and a main control module automatically controls related components to complete the injection process after the preset dose is injected, so that the operation amount of an operator isgreatly reduced, and the fatigue of the operator is reduced. 本发明涉及注射控制方法及装置，公开了一种美容针自动注射控制方法、装置及美容针。本发明提供的美容针自动注射控制方法、装置及美容针控制药物推注压力在一个预设范围和控制皮肤吸附压力波动反复收紧、松弛皮肤，有利于药物注入和减少受术者胀痛感；通过负压感应自动启动推注过程，注射完预设药量后主控模块自动控制相关部件完成注射流程，这样大大减少施