In our previous paper

we analyzed"Deqi"in book Huangdi Neijing(The Yellow Emperor's Internal Classic)and Nanjing(Canon of Difficult Medical Problems)from "Zhishen"(Treating mentality)and Tiaoqi(Regulating qi).In the present paper

the authors discuss the connotations of"Deqi"and related events in the later ages of the abovementioned two classic books to the later stage of the Qing Dynasty when involves about 20 classical works as Zhenjiu Dacheng(The Great Compendium of Acupuncture and Moxibustion)

Zhenjing Zhinan(Guide to the classics of Acupuncture)

Zhenjiu Daquan(A Complete Works of Acupuncture and Moxibustion)etc.from 1)close association between"Deqi"and patients' mental activity;2)how to wait for arrival of qi if the needling does not induce"Deqi"for the time being;3)how to identify"qi-arrival"and then

performing suitable manipulations;4)Deqi and shallow-or deep-needling;5)putting more emphasis on patients' feeling and reactions

rather than the practitioner's perception beneath the needle which is described in book Huangdi Neijing;and 6)not withdrawing the acupuncture needles if qi does not arrive.Generally

in the later ages

the connotations of Deqi are enriched greatly.