Portable gantry crane is a kind of light and efficient lifting equipment, which is widely used in industrial production, logistics storage, construction and outdoor engineering. Its core components include foldable gantry, lifting mechanism, operating mechanism and control system. The use of lightweight and high-strength materials, such as aluminum alloy, reduces its own weight and is easy to carry and move. Its design allows quick assembly and disassembly and is suitable for flexible transfer between different sites. It has a variety of application scenarios, including material handling inside the workshop, cargo lifting for outdoor projects, lifting items for exhibitions and temporary activities, etc. A low cost, high efficiency lifting solution is provided.