The invention discloses a movable driver cab with a telescopic mechanism. The movable driver cab comprises a ship loader host, wherein an upper fixing seat and a lower fixing seat of a connecting frame are welded on a main body of a ship loader; a flange at the lower part of the connecting frame is provided with a pressing wheel and reverse hook assembly, a driving device and driving wheels; I-shaped steel rails at the upper end of a telescopic beam are hung on the rims of the driving wheels; the driver cab is mounted at the outermost end of the telescopic beam; and the pressing wheel and reverse hook assembly is mounted between the front driving wheel and the rear driving wheel. Besides swinging along with the ship loader, the driver cab related to the technical scheme can also make extension motion along the main body of the ship loader, so that the distance from the driver cab to a shoreline can be ensured, and the requirement that an enough view space is provided to an operator to monitor ship loading operation can also be met.