The invention relates to a multifunctional toolbox suitable for uneven ground operation. A plurality of lifting support legs are arranged on a working platform. A suction mechanism capable of suckingthe toolbox is arranged on the upper end surface of the working platform. The lifting support legs can independently adjust the vertical position, and keep the working platform horizontal. The multifunctional toolbox provides a good operation environment for stairwells and uneven ground operations, avoids repeated trips of test personnel between a test site and the storage location of the toolbox,and prevents a test tool from falling at high altitude due to insufficient operating space, so that the safety factor of the test is improved, the test time is saved, and the work efficiency is greatly improved. Permanent magnets or electromagnets can be disassembled, so that the adjustment platform can be used directly as an operating platform or a connection toolbox. The overall manufacturing cost is low, and the multifunctional toolbox is easy to carry, and convenient to use on site.