To provide a panel material-attaching mechanism for handrail support wherein a blind of simple construction and having good external appearances can be firmly formed.

In the panel material-attaching mechanism for handrail support, handrail supports 10 are held by a first support holder and a second support holder, which are symmetrically formed, respectively, so that the supports 10 are oppositely disposed so as to be surrounded by the holders respectively, and a first and second panel materials are fixed to a first and second panel mount parts extending respectively from the outer ends of the first and second support holders. Thus the first and second panel materials are mounted on the outer surfaces of the supports 10 in a nearly continuous state.