The invention relates to a cab skeleton and a manufacturing method to solve the problem that bending positions of an existing cab are poor in strength. The cab skeleton comprises a first section of skeleton and a second section of skeleton which are formed by special-shaped steel pipes, and a third section of skeleton form by oppositely welding two groove-shaped bent plate notches formed by molds.The surfaces of the notches of the two groove-shaped bent plates are plane, and the groove-shaped bent plates are provided with two bending edges with opposite bending directions in the length direction of the groove-shaped bent plates. The two end faces of the third section of skeleton are separately welded to the end face of the end of the first section of skeleton and the end face of the end of the second section of skeleton. Curves with small radius are arranged on the skeleton. Transverse weld joints are not arranged on the small-radius curves. Cracks caused by small-radius bending by atraditional bending machine do not appear. High strength and reliability are achieved.