The sustained effect of acupuncture refers to the lasting effect after the cease of acupuncture. Through large amount of acupuncture clinical practices and experimental researches, the objective existence of the sustained effect of acupuncture is approved. However, the lasting period of acupuncture effect may be related with category and stage of disease, individualized acupuncture reaction, acupuncture methods, intervals between treatments and therapeutic course. Therefore, it has great scientific significance and practice value to carry out further systematic and in-depth research on effect onset time of different diseases as well as the discipline of the sustained effect, so as to promote and prolong acupuncture effect.