To provide a method for purifying trifluoroethylene, by which from a fluid containing trifluoroethylene, a C1-5 alkane or alkene (excluding trifluoroethylene) in which at least one hydrogen atom may be substituted with a chlorine atom or a fluorine atom can be efficiently removed, and a method for producing trifluoroethylene by which trifluoroethylene can be efficiently produced.A fluid containing trifluoroethylene is brought into contact with at least one type of synthetic zeolite selected from synthetic zeolites 3A, 4A and 5A.