Objective:To observe the effectiveness of photon therapeutic instrument combined with magnesium sulfate on puerperants with hemorrhoids.Methods: Sixty eight puerperants cases with hemorrhoids were chosen and randomly divided into an observation group and a control group, each with 34 cases. In the control group, Mayinglong hemorrhoids suppository was used on the hemorrhoids. While in the observation group patients were given photon therapeutic instrument combined with magnesium sulfate on the hemorrhoids. The curative effectiveness, the scores of pain, breastfeeding rates were compared between the two groups.Results: After one course of treatment, the treatment effect of observation group was 91.18%, which was higer than control group that was 82.35%, the difference was statistically significant(x2=4.086,P<0.05). After one course of treatment, the scores of pain in observation group was lower than that in control group, the difference was statistically significant(t=2.773,P<0.05). During the four months of postpartum, the breastfeeding rates in observation group was higher than that in control group, the difference was statistically significant(x2=4.403,P<0.05).Conclusion: Treating by photon therapeutic instrument combined with magnesium sulfate on puerperants with hemorrhoids, can increase treatment effect, reduce the severity of pain, and enhance breastfeeding rates, is worthy of clinic application.