The invention discloses a naturally degradable fruit nursery stock pot for gardens. The pot is prepared from raw materials in parts by weight as follows: cassava starch, polyvinyl alcohol, banana fiber, polylactic acid fibers, bamboo fiber, epoxy fatty acid methyl ester plasticizer, wool, silk, garlic, cimicifugae foetidae, kudzu roots, eucommia ulmoides, Chinese yams, aerogel powder, talc powder, kaolin powder, mica powder, tourmaline powder, far infrared ceramic powder, negative ion powder and water. The invention further discloses a preparation method of the naturally degradable fruit nursery stock pot for gardens. The degradation performance of the naturally degradable fruit nursery stock pot is effectively improved due to characteristics of starch and fiber combination and different characteristics of the raw materials, and besides, the situation that seedlings are influenced by mildewing of a nursery stock pot in the degradation process is effectively prevented.