The aim of this study is to reveal effect of Argan oil on postoperative peritoneal adhesion. Twenty-four Wistar albino rats were divided into three groups. After laparotomy was carried out intraperitoneally, 0,9% NaCl and 3 ml Argan Oil applied to saline and Argan oil groups, respectively. Four subjects in each groups were sacrificed at postoperative day 3 and 7. Macroscopic adhesions and microscopic cellular reactions, such as giant cell, lymphocyte/plasmocyte, neutrophil and histiocyte, were assessed and hydroxyproline levels were measured in all three groups. Adhesion and fibrosis scores were lower both 3rd and 7th days in Argan oil, but only lower fibrosis scores were statistically significant (p<0,05). Except giant cell 3th day scores; Argan oil had lowest neutrophil, lymphocyte, plasmocyte, and histiyocyte scores. Both 3rd and 7th days scores of neutrophil, lymphocyte, plasmocyte, but only 7th days scores of histiocyte reaction were statistically significant (p<0,05). However; Argan oil had highest hydroxyproline levels and the difference were not statistically significant both 3rd and 7th days (p>0,05). Argan oil reduced the postoperative peritoneal adhesions initially seperation the damaged tissues, subsequent effects of fatty acids and tocopherols on inflammation, plasminogen activation and matrix metalloproteinase steps of adhesion formation.