Abstract: In order to solve the problems of harvesting eulaliopsis binata by reciprocating cutter, the single factor test was carried out with the stem of eulaliopsis binata, which include the factors of cutting gap, cutting speed, cutting blade combination, the position and the number of stem cutting etc. Factors and levels of the orthogonal experiment were selected based on the single-factor test, then the stem maximum shear force orthogonal experiment was carried out. The results showed that the cutting gap and the cutting blade combination had greater effect on the shear force, while the cutting speed had less effect. Finally the field comparison tests were completed between the helical tooth-helical smoothing tool combination and the helical smoothing tool-helical smoothing tool traditional combination. The results showed that the helical tooth- helical smoothing tool combination increased 23% cuting rate and reduced 94% wrapping grass rate, which greatly improved the operation quality and efficiency of the eulaliopsis binata cutting.The results indicated that the helical tooth-helical smoothing tool combination for eulaliopsis binata harvest was feasible.