Objective: To study the application of otorhinolaryngologic diseases treated by Low Power Laser. Methods; All 158 cases with otorhinolarynogologic diseases were treated by Low Power Laser such as He - Ne laser and C02 laser. Results: After follow-up of three to six months in the 158 patients, 71 cases were significantly efficient(45% ).77 cases were efficient(49% ). There was no charge in 6 cases(10% ). Conclusion; LPL is a safety and efficacious therapeutic method on otorhinolaryngologic diseases.