A working machine comprising: a machine body ; an operator's seat mounted on the machine body and including a seat part and a backrest part ; a manipulator base disposed on a lateral side of the operator's seat ; and a housing body for housing a printed material therein, wherein the manipulator base includes a console box , the working machine being characterized in that the console box includes an intermediate section lying in the middle of the console box in a front-rear direction, a front section that protrudes forward from the intermediate section , and a drink holder included in the front section , the drink holder includes a top edge portion which defines a top end opening of the drink holder , the housing body is disposed forward of the backrest part and on an opposite side of the drink holder from the operator's seat , the housing body includes a wall located on a lateral side of the drink holder , an engagement portion to be hooked on the top edge portion of the drink holder , and an attachment part to be attached to the manipulator base , the attachment part being disposed below the engagement portion , and the engagement portion is located substantially in the middle of the wall in a top-bottom direction and located substantially in the middle of the wall in the front-rear direction, and includes an upper wall that extends from the wall laterally on the same side of the wall as the operator's seat and a bent-down wall that extends downward from a distal edge of the upper wall . a machine body ; an operator's seat mounted on the machine body and including a seat part and a backrest part ; a manipulator base disposed on a lateral side of the operator's seat ; and a housing body for housing a printed material therein, wherein the manipulator base includes a console box , the working machine being characterized in that the console box includes an intermediate section lying in the middle of the console box in a front-rear direction, a front section that protrudes forward from the intermediate section , and a drink holder included in the front section , an intermediate section lying in the middle of the console box in a front-rear direction, a front section that protrudes forward from the intermediate section , and a drink holder included in the front section , the drink holder includes a top edge portion which defines a top end opening of the drink holder , the housing body is disposed forward of the backrest part and on an opposite side of the drink holder from the operator's seat , the housing body includes a wall located on a lateral side of the drink holder , an engagement portion to be hooked on the top edge portion of the drink holder , and an attachment part to be attached to the manipulator base , the attachment part being disposed below the engagement portion , and a wall located on a lateral side of the drink holder , an engagement portion to be hooked on the top edge portion of the drink holder , and an attachment part to be attached to the manipulator base , the attachment part being disposed below the engagement portion , and the engagement portion is located substantially in the middle of the wall in a top-bottom direction and located substantially in the middle of the wall in the front-rear direction, and includes an upper wall that extends from the wall laterally on the same side of the wall as the operator's seat and a bent-down wall that extends downward from a distal edge of the upper wall . is located substantially in the middle of the wall in a top-bottom direction and located substantially in the middle of the wall in the front-rear direction, and includes an upper wall that extends from the wall laterally on the same side of the wall as the operator's seat and a bent-down wall that extends downward from a distal edge of the upper wall . <EOS>