介绍了良性前列腺增生手术的发展；阐述了激光前列腺增生手术的原理；介绍了目前KTP绿激光、2μm激光和最新的半导体激光手术新方法、特点以及相互之间的比较；并展望了激光手术有可能替代目前传统手术，成为良性前列腺手术的发展新方向。

First of all, the development in the treatment of benign prostatic hyperplasia(BPH) was introduced. Then the principle of laser vaporesection was explained. Several new methods, characteristics were introduced and compared, such as KTP green light, 2μm continuous wave laser and diode laser. Finally, it was prospected that laser vaporesection might be the potential new technology to replace the traditional surgery in the treatment of BPH.