To provide a cabin structure for a vehicle, in which a frame member obliquely arranged along a curved surface of a rear wheel fender is easily formed by two-dimensional bending processing.

In the cabin structure for a vehicle, right and left frame members 50 of a cabin frame 20 are obliquely arranged along the curved surface 30A of the right and left rear wheel fenders 30 on upper surface sides of the right and left rear wheel fenders formed in a shape curved in front and rear sides. A virtual plane X passing through an upper part and a lower part of the rear wheel fender 30 is set on the virtual plane X along an extension line extended obliquely forwardly and upwardly from the rear wheel fender 30, and the frame member 50 is subjected to circular bending along the virtual plane X.