A kind of hedge shear, including set of blades, cam structure and brushless motor. Set of blades includes upper and lower blade. Cutter includes upper cut part and upper engaging portion, and upper engaging portion forms embedded hole. Bottom knife includes lower cut part and lower engaging portion, and lower engaging portion forms lower embedded hole. Cam structure includes upper and lower eccentric cam. Upper and lower eccentric cam sets the upper and lower embedded hole of what respectively and opens up upper and lower eccentric pivot hole respectively. Brushless motor includes output shaft, and output shaft wears upper and lower eccentric pivot hole, drives upper and lower eccentric cam to rotate, to drive upper and lower reciprocating knives. Thereby, this creation replaces the combination of conventional motor and gear reduction unit with brushless motor, and output shaft directly wears upper and lower eccentric pivot hole, to maintain moyor, and reach reduction noise, volume and manufacturing cost and other effects.一種籬笆剪，包括刀片組、凸輪結構及無刷馬達。刀片組包含上、下刀片。上刀片包含上剪切部和上結合部，上結合部形成上嵌合孔。下刀片包含下剪切部和下結合部，下結合部形成下嵌合孔。凸輪結構包括上、下偏心凸輪。上、下偏心凸輪分別設於上、下嵌合孔且分別開設上、下偏心軸孔。無刷馬達包括輸出軸，輸出軸穿設上、下偏心軸孔，驅動上、下偏心凸輪旋轉，以帶動上、下刀片往復運動。藉此，本創作以無刷馬達取代傳統馬達和齒輪減速機的組合，且輸出軸直接穿設上、下偏心軸孔，以維持馬達效率，並達成降低噪音、體積及製造成本等功效。
