Purpose: This study was done to evaluate the effects of 3 times/week and 5 times/week abdominal meridian massage with aroma oils (AMMAO) on the relief of constipation among hospitalized children with disabilities involving the brain lesions (cerebral palsy, epilepsy, and others). Methods: The participants were 33 hospitalized children with a disability involving the brain (15 were in the 5 times/week of AMMAO group and 18 were in the 3 times/week of AMMAO group). Data were collected from March 21 to May 1, 2011. Chi-square test, t-test, and repeated measures ANOVA with SPSS 18.0 were used to evaluate the effects of AMMAO. Results: While there was no significant difference between the two groups, there was a significant difference within groups between baseline and the end of the intervention period for the following, frequency of suppository use or enemas, amount of stool, and number of bowel movements. Conclusion: The results of this study indicate that AMMAO is an effective nursing intervention in relief of constipation for hospitalized children with a disability involving the brain. Therefore it is recommended that AMMAO be used in clinical practice as an effective nursing intervention for relief of constipation to these children.