The present invention belongs to a manufacture method of snack foods and particularly relates to a processing method of low-sugar preserved spring phyllostachys heterocycla shoots. Technical key points are as follows: edible parts of the spring phyllostachys heterocycla shoots are taken as raw materials. The low-sugar preserved spring phyllostachys heterocycla shoots are mainly prepared by the processes of raw material taking, pretreating, color-protecting, rinsing, enzyme deactivating, cooling, seasoning, sugar soaking, drying, packaging, sterilizing, finished product obtaining, etc. The processing technology is used to produce the low-sugar preserved spring phyllostachys heterocycla shoots. The produced preserved phyllostachys heterocycla shoots are golden in color and luster and delicate in mouthfeel, have certain toughness, and are not sticky to hands. The processing technology retains the special flavor of the bamboo shoots, and the product has a sugar content of 20%-30% and is low in sugar contents, and convenient for storage. The processing method can fully utilize the left bamboo shoots after processing, improves the utilization rate of the bamboo shoots, reduces the production costs, improves the production high-tech contents and added values of the products, and opens up a new way for the processing and utilization of the bamboo shoots.