To provide a device comprising an inclined supporting table without making the device itself larger.

The inclination measuring table device comprises: (A) a supporting table supporting a material of a machining object; (B) a first roller gear cam mechanism including a first swinging turret which is connected to the supporting table so as to swing the supporting table and includes a first cam follower in a circumferential direction and a first roller gear cam which is engaged with the first cam follower and includes a cam surface whose phase is changed into an axis direction by rotation of a first driving axis; and (C) a second roller gear cam mechanism which is arranged on the opposing side of the first roller gear cam mechanism so that the supporting table is sandwiched therebetween and includes a second swinging turret connected to the supporting table so as to swing the supporting table and having a second cam follower in the circumferential direction, and a second roller gear cam which is engaged with the second cam follower and includes a cam surface whose phase is changed into the axis direction by rotation of a second driving axis.