A working machine includes: a boom base portion including: an inner side wall; and an outer side wall disposed opposite to the inner side wall; a lift link disposed on a rear portion of the boom base portion; and a boom cylinder disposed in front of the lift link. One end side of the lift link is inserted between the inner side wall and the outer side wall and is pivotally supported on the boom base portion. The other end side of the lift link is pivotally supported on the machine body. One end of the boom cylinder is inserted between the inner side wall and the outer side wall in front of the lift link and is pivotally supported on the boom base portion. The other end of the boom cylinder is pivotally supported on the machine body by below the lift link.