The article reported that Rabbits threshold of Pain were made a target of observing analgesic effect of the Semiconductor GaAs laser irradiation Znsanli (V36) points.The relations between meridian with peripheral nervous and analgesic mechanism had been explored.The result showed that GaAs laser irradiation Znsanli(V36) points not only increase basic threshold of pain for Rabbits

but also had all over analgesic effect.After irradiation fifteen minutes obviousness effect in particular.That both the low-frequency elec tropulseand the laser affected points can raised analgesic effect

but it showed obvious analgesicback-effect.GaAs laser irradiation nervis fibularis profundus were similar analgesic effect to the points irradiation indicated that points irradiation stimulus conduction had relation to peripheral nervous.After veininjection naloxone analgesic effect that GaAs laser irradiation points arose reversion were similar acupuncture analgesia.It indicated that analgesic effect had relation release of the internal source opiate-like substance(OLS).