The utility model discloses a lithium battery module in bridge connection, which belongs to the field of battery packs. The lithium battery module in bridge connection comprises monomer batteries and a connecting strip, and is characterized in that a polar column of each monomer battery is in a cuboid shape; a fixing hole is formed in the side surface of each polar column; the connecting strip is a groove; a fastening structure is arranged on the side surface of the connecting strip groove. Compared with the prior art, the lithium battery module has the advantages that the polar columns of a plurality of monomer batteries are connected by the integrated connecting strip, and three surfaces are in contact, so that the contact area is large, and the discharge above 10 DEG C can be performed while the heat still can be kept relatively low; the design is particularly suitable for a battery pack with high rate capability requirements; moreover, the connection structure is simple, the batteries are grouped conveniently, the time is saved, and the cost is reduced.