To provide a joint member capable of connecting a blindfold fence for a sloped face in the same design with a fence and with good appearance.

A connecting partition 14 having the same appearance with a partition 4 of the fence 1 inclined at a free angle is used, a joint base 11 is installed on the upper and lower ends, and fan-shaped lateral frame connecting members 24 are journal to both sides of the joint bases 11 to freely turn to be projected and sunk, thereby forming the joint member 10. The lateral frame connecting member 24 is fixed to the end in the longitudinal direction of the lateral frame 2 of the fence 1, and the adjacent fences 1 are connected to each other at the respective angles of inclination according to the slope face by the joint member 10.