The invention discloses a sterilization pallet with convenience in automatic stacking and conveying for an automatic oral liquid bottle loader. The sterilization pallet comprises a pallet bottom plate, wherein guard rails are arranged on the periphery of the pallet bottom plate and comprise fixed guard rails and movable guard rails, the guard rail at a bottle feeding end is a first movable guard rail, the guard rails located on two sides of the bottle feeding end are the fixed guard rails, the first movable guard rail is movably connected between the two fixed guard rails, a concave-convex step surface is formed on the inner side surface of the guard rail opposite to the first movable guard rail, the upper part of the step surface is recessed to the outer side of the pallet, so that the lower side surface of the inner side surface of the guard rail inwards bulges out of the upper side surface, and the outwards recessed depth of the upper side surface is not smaller than the thickness of a bottle protecting plate in a bottle pushing mechanism of the automatic oral liquid bottle loader; and size adjusting plates capable of adjusting the inner chamber size of the pallet are arranged on the inner side walls of the fixed guard rails. With application of the sterilization pallet, the production cost can be reduced, and the working efficiency can be increased.