Baijian is a large-scale comprehensive testing e-commerce service platform, established in 2018, headquartered in Shanghai. It builds an internet-based testing e-commerce service platform for third-party testing institutions and SME users. The platform offers various testing services across multiple fields such as food, environment, healthcare, building materials, electronics, chemicals, automotive, home furnishings, maternal and infant products, toys, luggage, water quality, cosmetics, textiles, daily chemical products, and agricultural products.

Baijian adopts an innovative 'internet plus testing e-commerce' model, primarily providing customers with laboratory matching for product testing. The name 'Baijian' signifies 'all' or 'numerous' ('bai'), and 'testing' ('jian'), indicating its industry nature. This innovative testing service website focuses on establishing internet-based testing e-commerce services for third-party testing institutions and SME users.