Four hundred fifty-eight husbands (118 natural science researchers, 97 senior high school teachers, 147 white and 96 blue color workers) were asked which of the two wife's roles, instrumentality and expressiveness, was important. Husbands responded to a questionnaire that consisted of three parts. The first part contained 45 paired items made of five items of instrumentality and five items of expressiveness, and the husbands chose the more important one of paired items. The second part consisted of 10 items concerning accomplishment of wife's daily works and the husbands rated their wives' accomplishment in five grades. The third part contained four items about wives' contribution to husbands and the husbands rated their wives' contribution in three grades. Main results are as follows : 1) In general, expressiveness was rated more important than instrumentality; 2) as the husbands became older, more importance was attached to expressiveness; 3) the wives of low income husbands were expected to fulfil instrumental roles than expressive ones; 4) housewives performed expressive roles more completely than instrumental ones, while wives who had full-time jobs showed a reverse tendency.