A method for manufacturing EVA outsoles includes step 1 to mix EVA and foaming agent to become a mixture; step 2 to press the mixture to be a plate; step 3 to cut the plate into strips; step 4 to overlap the strips to a desired weight; step 5 to heat the overlapped strips in step 4 in a mold to form an outsole, and step 6 to trim the outsoles.