The invention discloses a multifunctional cushion. The multifunctional cushion comprises at least one blanket, at least one waterproof cushion, at least one heating cushion and at least one spongy cushion, wherein the blanket, the waterproof cushion, the heating cushion and the spongy cushion are the same in size, are installed in sequence from top to bottom, and are arranged in a detachable mode. Due to a movable connecting buckle structure, storage, movement and disassembly are convenient; due to processing through the waterproof cushion, contamination caused by a baby to sponges and damage caused by the baby to a heating device can be effectively reduced; due to the fact that the heating cushion can be disassembled in the season without the need for heating, only the blanket, the waterproof cushion and the spongy cushion are kept, the multifunctional cushion serves as a simple floor mat, and the purpose of being multifunctional is achieved.