gingival fibromatosis is fibrous non hemorrhagic enlargement of gingiva which appear as firm rosy color and stippled with no sign of inflammation usually occur in the time of eruption permanent teeth and causes delay eruption .This study aimed to improve the effectiveness of laser in treatment of gingival fibromatosis .Study done on 10 patient suffering from gingival fibromatosis to be treated by diode laser .The patients was assessed in time of operation and in third day, 1 week, 2and 4 week postoperatively for pain, bleeding, function interference and patient satisfaction . The laser was effective in treatment of the gingival fibromatosis.