To improve the peeling rate of citrus, a top removal and ring cutting device was designed for citrus peeling machine，In order to remove the peel of the citrus fruit stalk and cut the peel through the largest fruit diameter of the citrus peel. The device is mainly composed of frame, a centering mechanism, a top removal mechanism, a ring cutting mechanism. At work, the citrus does not move, to the top removed blade gradually peeling embedded in the fruit stalk peel, cut off the citrus fruit stalk around the peel and orange network, in the top of the citrus spin a circular cut and hold the top peel, in the tool box in the process of upward, under the effect of cutting edge squeezing force and friction force, the top peel of citrus is taken away; Ring cutting pressure plate with the knife box down to the top of the mandarin orange, ring pressure plate pressure plate embedded citrus orange peel and stuck citrus, this time, the side of the ring cutter with the heart The rotation of the shaft is embedded in the citrus peel; the motor starts and the circular cut and pressure plate drives the citrus to rotate, and the ring cutter forms a circle of scratch in the citrus radial direction to realize ring cutting. The single-factor test was carried out on the hot steam time and the rotating speed of the arbor, which affect the performance of detaching and cutting. The experiment results showed that when operation on the heating time of 90 s and cutter shaft rotation speed of 120 r/min, the rate of topping and damage rate was 96.7% and 4.2%; the rate of ring cutting and damage rate was 97.5% and 4.7%, respectively.