Abstract: Girdling technology is a crucial agronomic measure to enhance fruit tree fruit setting rate, holding significant importance for improving girdling operational efficiency and standardization through mechanized application on fruit tree branches．Currently, girdling equipment primarily consists of manual girdling knives and electric girdling devices．Manual tools depend largely on farmers' operational experience, suffering from low efficiency．Electric devices perform girdling on tree branches through mechanical transmission．Although some electric devices feature depth adjustment functions, but still lack adaptive adjustment capabilities．Girdling equipment commonly faces challenges such as poor adaptability and low compatibility between tools and diameters of fruit tree branches or trunks．This leads to residual phloem or xylem damage after girdling, and may potentially cause tree mortality．Research progress of fruit tree girdling equipment both domestically and internationally was systematically reviewed, integrating agronomic and mechanical principles to provide a reference for developing high-efficient and precise girdling equipment．