In the growth process of children, playing with dolls contributes to the formation of the self, creativity, and social development. In general dollhouse play, children move the dolls and imagine the world of the dollhouse. In this study, we installed sensors of distance and pressure in a dollhouse, and projected interactive images according to the measured values by projection mapping. It became possible to expand the doll play by generating the image corresponding to the movement of the dolls and hand in real time and reflecting it in the doll house.