Abstract: At present, most pineapple harvesting is still in the stage of manual picking, while mechanized pineapple picking is faced with such problems as bad working environment, complex working reality and information cannot be transmitted and recognized in real time. In order to deal with the current situation of pineapple harvesting, based on 5G communication technology, an automatic pineapple picking machine with STC89C52 microcontroller as the remote control system was designed, which could accurately locate and cut the pineapple, transmit the pineapple with high efficiency, realize the integration of harvest and transmission, and at the same time, monitor the real work of the pineapple and transmit the information efficiently and real-time. Help farmers mechanized picking, reduce labor costs, improve harvesting efficiency, and realize the intelligence of pineapple industry.