The open single panel tube integrated machine, one machine for two purposes, enriches the equipment functions and solves the cutting scheme of multiple types of workpieces; It can not only cut metal plates, but also cut metal pipes. One machine can be used for multiple purposes, saving the cost of purchasing two sets. The optical fiber laser cutting head is equipped with a servo device and an optical path transmission device. For plates of different thicknesses, multiple sets of focusing systems are developed to cut a variety of three-dimensional metal plates in multiple directions to meet customer needs.