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In order to solve the problems of high labor intensity, shortage of rubber cutters and low efficiency of natural rubber tapping at night, a fixed automatic natural rubber tapping machine was designed. Moving motor and screw motor were used to drive the rubber cutter to rotate around the tree and move in the vertical direction, respectively. The two movements were combined to form the spiral line operation track of rubber cutter, so that the cutter can adjust the spiral line angle according to the growth of the rubber trees to ensure smooth rubber discharge. The screw motor was matched with the rotary encoder to adjust the rubber consumption of the rubber tapping machine, and double profiling springs were mounted to ensure uniform and stable cutting depth, overall, meeting different rubber tapping requirements, and reducing damage of rubber trees. A three factor and three level orthogonal experiment was conducted with the spiral angle, cutting speed, and rubber consumption as experimental factors, and the cutting machine energy consumption and the variation coefficient of rubber consumption as experimental indicators. The experimental results showed that the optimal results were obtained when the helix angle was 25°, the cutting speed was 0.6m/min, and the rubber consumption was 0.8mm. The average power consumption was 0.48W·h, the variation coefficient of rubber consumption was 7.61%, and the variation coefficient of cutting depth was 4.78%. The experimental results met the requirements.