Waterproof corrugated board

The utility model relates to the technical field of paperboards, and discloses a waterproof corrugated paperboard which comprises an inner layer, an interlayer is fixedly installed on the outer side of the inner layer, an outer layer is fixedly installed on the outer side of the interlayer, drying agents are arranged on the inner sides of the outer layer, the inner layer and the interlayer, oiled paper is installed on the outer side of the outer layer in an attached mode, and the oiled paper is made of waterproof materials. A clamping block is installed on the outer side of the oiled paper in a clamped mode, and a hole is formed in the inner side of the clamping block. According to the waterproof corrugated board, the clamping blocks are assembled to isolate the paper boards, the situation that after the paper board on one side is damped, water is conducted to other paper boards due to the surface tension effect can be prevented, the clamping blocks can play a certain supporting role on the paper boards, and