Evaporated fuel treatment device for motorcycle

A charge pipe passage (84) includes: a first engine-side pipe passage part (84e) which extends vertically; a second engine-side pipe passage part (84f) which is connected to a lower end of the first engine-side pipe passage part (84e) on one side in the vehicle widthwise direction and extends from one side to the other side in the vehicle widthwise direction above the engine body (19); and a third engine-side pipe passage part (84g) which is communicably connected to the second engine-side pipe passage part (84f) on the other side in the vehicle widthwise direction and is connected to the engine body (19), and at least a part of the charge pipe passage (84) between a frame-side support part (110) and an engine-side support part (111) is formed of an elastic tube (97).