本文介绍ＭＺ型脉冲ＹＡＧ激光治疗仪产品样机的研制。该机具有脉冲宽度窄，作用时间短，浸入人体组织深度浅，对周围组织热损伤小，产生烟雾少，伤口愈合期短的特点。经过三家省级医院为期三个月以上近２００位患者的临床验证，治疗效果满意。 This article describes the MZ pulse YAG laser therapeutic apparatus product prototype development. The machine has a narrow pulse width, short duration of action, immersed in human tissue shallow depth of thermal damage to the surrounding tissue is small, less smoke, the wound healing period is short. After three provincial hospitals for more than three months of nearly 200 patients with clinical validation, the treatment effect is satisfactory.