Abstract: Disclosed is a novel environmentally friendly cushioning packaging structure, including a base plate and an extendable cushioning pad, where both ends of a same side surface of the base plate are fixedly connected to two extendable ends of the cushioning pad to form an integrated structure, the cushioning pad is provided with a cushioning surface, and the base plate is provided with a fold line; the base plate is bent along the fold line toward one side of the cushioning pad and covers an outer periphery of the cushioning pad, and is bent and stretched to be in a cylindrical wrapped state, and the cushioning surface is enclosed to form a packaging cavity for accommodating a packaged article. The base plate is provided with openings at both ends in an extending direction of the fold line, and is further provided with a sealing plate for covering the openings.