图海文库 is an online resource and sharing platform serving mechanical design professionals. It provides downloadable technical materials, including mechanical CAD drawings, three-dimensional models, design projects, and supporting documents such as process plans and explanatory reports. Its resources cover modeling and design work created with Pro/E, UG (NX), SolidWorks, and CATIA, alongside broader mechanical engineering references.

The site organizes content into categories including machinery and molds, electromechanical control, manufacturing fixtures, vehicle engineering, chemical and environmental engineering, civil construction, mining and ventilation, and CAD drawings. Its library features examples ranging from machine tools, agricultural equipment, molds, vehicles, and hydraulic systems to automation projects, buildings, bridges, and mining designs. Many listings bundle CAD drawings with written documentation, while some also include 3D models, presentations, or other project materials.

图海文库 also supports resource sharing and professional learning, with areas for new and popular uploads, topic collections, announcements, and experience exchange. Help resources address common download and file-conversion issues, and the site provides information about the platform, contact options, and collaboration links.