To solve the problem of a bath chair for a little child usable inside a bathtub, that since the fixing strength corresponding to the edge width of the bathtub is weak, the little child cannot move hands freely, and sitting feeling becomes uncomfortable, and then the little child becomes in bad mood.

This bathtub chair 1 for a little child is installed to a bathtub 12, and is provided with a seat face 9 inside the bathtub 12. Nearly horizontally bent catching hooks 2 are continuously installed to upper end parts of nearly vertically provided a pair of right and left two adjustment hangers 4; adjustment hanger 4 lower parts are nearly horizontally disposed with the seat face 9, and the seat face 9 and the two adjustment hangers 4 are connected by a fixing belt 5.