According to the demand of port information,automation,and intelligence,a container automatic disassembly system was designed using PLC as the core controller and 3D vision technology,robot technology,and sensor technology.By analyzing the structural characteristics of container twist locks,a twist lock disassembly device was designed,and a process flow for automatic disassembly of twist locks was developed based on actual working conditions.The design scheme of the control system was provided,including system hardware composition,network structure design,communication parameter configuration,and system control flowchart.The system is safe,reliable,and operates well,playing a positive role in promoting the upgrading of port equipment.