The utility model discloses an enclosing box of a cement emulsified asphalt mortar stirring and filling vehicle, which comprises a container body, wherein the container body is fixed on a vehicle frame, and is divided into an upper layer and a lower layer, and two box plates capable of being correspondingly folded are arranged at the lateral surface and the tail part of the lower layer of the container body. The utility model is characterized in that a top plate is covered on the top of the container body, oil tanks with upward piston rods are respectively arranged at corners of the bottom ofthe upper layer of the container body, and the top ends of the piston rods are connected with the top plate. A movable box plate which can be turned open towards the outside is hinged on the bottom edge of the upper layer of the container body, and the upper edge of the movable box plate is hinged with a lateral box plate. When the cement emulsified asphalt mortar stirring and filling vehicle works, the movable box plate is used as a movable pedal for a worker during operation, the lateral box plate is used as a lateral surface enclosing plate, and railings are fixedly arranged on the lateralbox plate. The utility model enlarges the operation space under the premise of ensuring the certain outer dimension of the mortar stirring and filling vehicle, the safety of workers is also ensured, and the maximized function is realized.