Abstract: In order to implement information sharing and integration among systems and accelerate the informatization process of the gear enterprise, authors proposed one gear manufacturing information sharing and integration solution based on extensive makeup language (XML) and Web services. The mapping mechanism between EXPRESS data model and XML data model in the gear enterprise was researched; the conversion and representation of standard exchange of product data model (STEP) with XML was implementated, the gear information sharing and service platform was constructed based on Web services, and the architecture and software achieving were elaborated. At last, one helical gear networked grinding experiment was presented to verify the feasibility and practicability of this information sharing and integration approach. The experiment results indicate that the scheme proposed in this paper can effectively implement the information sharing and integration among systems and meet the informatization requirement of the gear enterprise.