The invention discloses a paperboard material with high waterproofness. The paperboard material comprises a paper main body, a cavity is arranged at the paper main body; the drying agent is arranged in the cavity, a lower waterproof layer is arranged below the the paper main body, a flame retardant layer is arranged on the paper main body, an oil ink printing layer is arranged on the flame retardant layer, and an upper waterproof layer is arranged on the oil ink printing layer. The paperboard material has good waterproof effect through the low waterproof layer and the upper waterproof layer; the paperboard material has good dehumidification drying effect through the drying agent when being used as a package box; the paperboard material has good buffer effect through the cavity in the paper main body, thereby playing the protection effect; and the flame retardant layer can prevent fire from spreading.