The invention discloses a ship welding information management method comprising the following steps that design of a welding code of a butt joint welded joint is completed in a Tribon system; design of an assembly structure tree type catalog of sections of a ship hull is completed; information of a three-dimensional geometrical model of the sections, the welded joint and an assembly structure tree are extracted intelligently; the corresponding three-dimensional geometrical structure model and information of the assembly structure tree are guided into an INFOGET welding information management system; a computing base face of manufacturing and welding of the sections is defined in a three-dimensional visualization mode; initialized definition is carried out on welding information; according to the requirement of the actual welding of the sections, welding information of the sections is computed in a three-dimensional visualization mode; information of the welded joint is queried; mixed counting is carried out according to the manufacturing stages, welding methods, welding positions, joint types and the production process mode of assemblies of the sections, and various needed welding information lists and dispatch lists are generated. By means of the ship welding information management method, the basic data such as welding time and object amount are accurately counted, and the requirements for plans, production preparation, cost budgeting and the like can be met.