Methods Two Qihai （气海 CV Objective To discuss the efficacy of acupuncture for groups of points were applied alternatively to 90 cases by chronic functional constipation acupuncture： （1） Tianshhu （CFC）. ST 25）, 6）, Shemgjfuxu （上巨虚 ST 37）, etc. （2）Zhongliao （中髎 BL 33）, Xiadiao （下髎 BL 34）, Dachangshu （大肠俞 BL 25）, etc. Electroacupuncture was applied in combination at Zhongliao （中髎 BL 33）, Xialiao （下髎 BL 34）, Tianshu（天枢 ST 25） and Shamgjuxu （上巨虚 ST 37）, once a day, 10 treatments made one session. By constipation diary of patients, frequency of going to stool, straining severity, time of once bowl evacuation, a sense of incomplete bowel emptying, stool quality, a sense of defecation and the Patient Assessment of Constipation Quality of Life questionnaire （PAC-QOL）, as well as the changes before and after treatment were observed. Results After treatment, the apparent improvements were achieved in frequency of going to stool, straining severity, time of once bowl evacuation, a sense of incomplete bowel emptying, a sense of defecation and score of PAC-QOL as compared with those before treatment （all P〈0.01）. The total effective rate was 67.7% （61/70）. The acupuncture effieacies were various on CFC of different dynamic mechanisms. The efficacy on slow transit constipation （STC） was superior to that caused by spastic pelvic floor syndrome （SPFS-C） （P〈0.05）, the efficacy on constipation caused by irritable bowel syndrome （IBS-C） was superior to that on either SPFS-C or constipation caused by relaxant pelvic floor syndrome （RPFS-C） （both P〈0.05）. Of 52 eases in effective follow-up, 1 month after treatment, 3 eases were cured, 6 eases markedly effective, 23 eases effective, and 20 cases failed; 3 months after treatment, 3 eases were cured, 5 eases markedly effective, 16 cases effective and 28 cases failed. Conclusion Acupuncture has definite efficacy on CFC with definite etiology, loci and
