A plating-bath anode beam wiring method of a steel-wire electrogalvanizing production line comprises the steps as follows: two U-shaped anode beams in a first group of electro-galvanized sheet anode boxes in a plating bath and two end sockets on the left side of an electrogalvanizing anode potential busbar are connected mutually through power supply cables; end sockets, arranged on the right side of the electrogalvanizing anode potential busbar, of the two U-shaped anode beams are connected with the electrogalvanizing anode potential busbar through cable connection bolts; two U-shaped anode beams in a second group of electro-galvanized sheet anode boxes and two end sockets on the right side of the electrogalvanizing anode potential busbar are connected mutually through power supply cables; end sockets, arranged on the left side of the electrogalvanizing anode potential busbar, of the two U-shaped anode beams are connected with the electrogalvanizing anode potential busbar through cable connection bolts; and the plating-bath anode beam wiring of the whole electrogalvanizing production line is performed as the above. By the aid of the connection method, complementarity of the current distribution is realized, the difference of current distribution of steel wires in the same plating bath is reduced, the uniformity of zinc coatings of the steel wires is better, the quality defect that steel wire zinc coatings on two sides of each plating bath are coarse is eleiminated, and the product quality is improved.