The invention relates to a technology innovation management information system for a group enterprise, and the architecture of the system comprises a presentation layer, an application layer, a data layer, and a storage layer. The application layer comprises an innovation and creativity collection unit, a planning management unit, a project declaration unit, a plan and budget unit, a process management unit, a funds management unit, a contract management unit, a conclusion acceptance unit, a result management unit, an intellectual property management unit, a performance evaluation unit, an incentive management unit, a project evaluation unit, an innovation think tank unit, an innovation platform unit, a statistical evaluation unit, an integrated platform unit, a technical forum unit, a WeChat platform unit, a portal unit, and a background management unit. All the above units carry out the interaction with the outside through the presentation layer, and the data generated by all units are classified through the data layer, and then is stored through the storage layer in order. The system can achieve the omnibearing informatization management of the innovation technology of an enterprise.