A vehicle special for conveying liquid bags mainly comprises a vehicle chassis assembly, a stand column, an upper longitudinal beam, an upper cross beam, a lateral door assembly and a rear door assembly, wherein the stand column, the upper longitudinal beam, the upper cross beam, the lateral door assembly and the rear door assembly form the main body of a carriage. The stand column, the upper longitudinal beam and the upper cross beam are in right-angle fixing welding, and the lateral door assembly and the rear door assembly are connected onto the stand column through a hinge. The lateral door assembly is formed by an upper part and a lower part which are connected through a hinge. The lateral door assembly of each door can rotate around the stand column through the hinge, and the upper portion of each lateral door can rotate relative to the lower portion of the lateral door through the hinge. When the vehicle is used for conveying liquid bags, the upper portion of the lateral door assembly is bent downwards to press on the liquid bags when liquid is filled in the bags, and the liquid can be prevented from swinging after fastening, so that stability and operation safety in vehicle driving are ensured. When the vehicle is used for conveying other goods, the upper portion of the lateral door assembly is raised to form an integral door with the lower portion so as to form a blocking wall on the conveyed goods. By means of the vehicle special for conveying liquid bags, safety in liquid conveying is improved, conveying efficiency can be improved better, and cost is saved.