Estimation model of households by housing types that incorporated the fluctuation of population and the change of dwelling between housing types is constructed in this study. By using this model, the households by sex and housing type of Yamaguchi Pref. in 1993 is estimated, and the comparison with real value and Kawakami Model is carried out. Two changing ratio of dwelling between housing types is applied to the model. In case of changing ratio from 1983 to 1988, total accuracy of this model is 0.994 and the more accurate result is obtained than it of Kawakami model(0.952). About owned houses and rented houses owned by public corporstion, the accuracy becomes with 0.976 and 0.948. In case of the ratio from 1978 to 1983, the exactness is 0.999. About the issued houses,the rented houses owned privately and the owned houses, exactness of estimation improved to 0.865,0.944 and 0.985.