The invention discloses a technology for electrogalvanizing of a specially-shaped steel wire. The technology comprises the following steps of carrying out ultrasonic washing of a specially-shaped steel wire, determining an electrogalvanizing total current and a production speed, improving an opening size and balance weight of a negative pole gun in an electrogalvanizing tank, and carrying out electrogalvanizing of the specially-shaped steel wire by processes of spool-based wire taking-up and the like. The technology has the advantages that a zinc layer coated on the surface of the specially-shaped steel wire is even and is tightly bound to the specially-shaped steel wire; zinc falling off in wire taking-up and wire laying-up is reduced; and requirements on weight of different zinc layers of the specially-shaped steel wire are satisfied.