The application provides a combined small-current fuse box, and relates to the technical field of current fuse boxes.The small-current fuse box comprises a bottom plate and a plurality of sliding plates, the middle part of the upper surface of the bottom plate is fixedly connected with a mounting box, a plurality of first through holes are formed in one side of the mounting box, a plurality of second through holes are formed in the side, away from the first through holes, of the mounting box, two first limiting grooves are formed in the rear end of the first through holes, a plurality of baffles are fixedly connected in the mounting box, two second limiting grooves are formed in the outer wall of the front end of the baffle, a plurality of clamping plates and sliding rods are fixedly connected to the bottom surface of the mounting box, and two third limiting grooves are formed in the upper surface of the clamping plate.The application provides a combined small-current fuse box, the overall structure of the small-current fuse box is reasonable and compact, the small-current fuse box is convenient to process and produce, the overall stability of the device is high, the application range is wide, and the practicality is strong.