A decomposable plant covering protective film includes: a film, the protective film of the film has a thickness, the protective film of the film is made of organic decomposable materials, the protective film of the film has a plurality of grooves, the thickness of the protective film of the film is 30-70 u03bc m, the material of the protective film of the film is organic biological material and nano plant fiber The protective film of the film has a certain degree of ductility, and the decomposition time of the protective film of the film can be controlled according to the thickness of the film when it is not broken.一種可分解植栽披覆保護膜，係包含有：一薄膜，前述薄膜之保護膜具有一厚度，前述薄膜之保護膜係以有機可分解材料製作而成，前述薄膜之保護膜上具有複數個凹槽，前述薄膜之保護膜厚度為30~70μm，前述薄膜之保護膜之材質為有機生質材料及奈米級植物纖維，前述薄膜之保護膜具有一定程度之延展性，前述薄膜之保護膜於未打碎狀態下，可依據薄膜厚度控制分解時間。
