The utility model discloses a fixation partition side wire outgoing type low voltage cabinet. The low voltage cabinet comprises a cabinet body, a function unit room which is arranged on the left side of the front part of the cabinet body, and a cable room which is arranged on the right side of the front part of the cabinet body. A cable supporting beam is arranged in the cable room. A plug-in mounting plate and an interlayer partition plate are arranged in the function unit room, and are fixed through a screw. The plug-in mounting plate can partition the function unit room and the cable room. The low voltage cabinet provided by the utility model has the advantages of safe and reliable operation, simple and compact structure and beautiful appearance, is economical and practical, can satisfy high, safe and stable operation requirements, and can be applied to the occasions that installation against a wall is needed and the fixation partition type low voltage cabinet is used.