The invention discloses a fuse base, which comprises a bottom plate with a mounting hole, wherein two side plates which are formed through bending upwards are arranged at two sides of the bottom plate; symmetrical conductive plates are formed at the inner sides of the two side plates; each conductive plate is provided with a vertically arranged clamping plate part and an inclined plate part connected with the top end of the clamping plate part and the top end of the corresponding side plate; two clamping plate parts on the two conductive plates are arranged at an interval in parallel; a gap for accommodating a fuse contact knife is formed between the two clamping plate parts; the two inclined plate parts are arranged in an inverse splayed form; the bottom ends of the two clamping plate parts are connected through an elastic connection component; the elastic connection component comprises a connection bolt, a connection nut matched with the connection bolt and a spiral spring sleeving the connection bolt; the spiral spring is suitable for providing the two clamping plate parts with close elastic force; bolt penetration holes for the connection bolt are formed in the bottom ends of the two clamping plate parts; and the connection bolt is arranged in the bolt penetration holes in a penetrating manner and is in threaded fit with the connection nut. Electric contact of the fuse baseand a fuse when the fuse base is installed for use is reliable and the fuse base has a good use effect.