Abstract: Plant fiber, as a biobased material in nature, the development and applications of green and environmentally friendly materials and applications have attracted much attention. Plant-based micro and nanofibers have excellent characteristics such as high specific surface area, high strength, high modulus, and so on. It has great potential to replace some non-biodegradable plastic materials and products by using it to construct green and environmentally friendly structural materials. In this review article, the research progress of plant fiber self-bonding molding environmentally friendly materials is summarized and presented. The preparation process and performance of plant micro-fiber molding materials, plant nanocellulose structural materials and plant micro and nanofiber structural materials are mainly discussed. The key research directions of plant fiber self-bonding molding environmentally friendly materials in the future are prospected in order to promote the development and application and of plant fiber in structural materials and provide some reference.