Objective To observe the effect of procedure for prolapse and hemorrhoids (PPH) combined with rectal antetheca styloid suture on severe rectocele. Methods 106 patients with severe rectocele treated in our hospital form Jan. 2014 to Jan. 2017 were randomly divided into observation group (PPH + rectal antetheca styloid suture, n=53) and control group (Block, n=53). The operation time, hospital stay, postoperative bleeding rates, symptom improvement of outlet obstructive constipation, effective rates and recurrence rates in the two groups were compared. Results The operation time, hospital stay and postoperative bleeding rate in the observation group were(20.36±4.23)min,(7.36±1.65) d and 3.77% which were significantly lower than those in the control group(31.26±7.12)min,(10.23±2.45)d and 15.09%(P<0.05), after 3 months follow-up, the symptoms of outlet obstruction constipation in the two group were both improved, and the improvement in the observation group was better than that in the control group (P<0.05), after 6 months follow-up, the effective rate in the observation group was 92.45% which was significantly higher than that in the control group 64.15% (P<0.05), the recurrence rates in the observation group was 3.77% which was significantly lower than that in the control group 15.09% (P<0.05). Conclusion PPH combined with rectal antetheca styloid suture which is worthy of promotion, can effectively shorten the operation time of severe rectocele and hospital stay, reduce the postoperative bleeding rate and recurrence rate, and improve the symptoms of outlet obstruction constipation and therapeutic effect.