The invention relates to the technical field of switch cabinets, in particular to a GCS low-voltage withdrawable switch cabinet with moisture-proof performance, including a support structure, a sealing structure, a storage structure, a storage structure, a protection structure and a transmission structure; the setting of the sealing structure is convenient for The support structure is sealed, and the setting of the support structure is convenient to adjust the flatness of the storage structure in the same direction, thereby greatly improving the efficiency and quality of the installation of the storage structure; the protection structure can conflict with the storage structure, and the setting of the protection structure is convenient. The storage structure is protected, thereby effectively preventing misoperation of the internal knobs of the storage structure, and at the same time, it is convenient to limit the storage structure and improve the stability of the storage structure; it is convenient to drive the transmission structure through the protection structure, so that the transmission structure drives the storage structure and the storage structure conflicts between them, thereby making the sealing performance between the storage structure and the storage structure better, thereby greatly improving the moisture-proof performance.