The experimemts were performed on the rats. It was found that the development of tolerance toacupuncture analgesia could be seen by repeated electric-acupunctureandcomplete tecovery was observed24 h later under our experimental conditions. The morphine analgesia was also reduced during acupun-cture tolerance and tecovered after the acupuncture tolerance was abolished. A close correlation wasfound between them (r_s=0.33

P<0.05).