Hello, the calligraphy and painting auction platforms are: 1. Yabao Auction Network. As the earliest and largest online bidding and trading platform in mainland China, Yabao Auction Network has created a domestic C2C Internet business model. 2. Chinese Calligraphy and Painting Auction Network Chinese Calligraphy and Painting Auction Network provides Chinese calligraphy and painting auction information, Chinese calligraphy and painting auction previews, Chinese calligraphy and painting art transactions, and Chinese calligraphy and painting collection auctions. It is the most authoritative art collection auction website in China. 3. Artron Art Network Artron Art Network is a world-renowned authoritative portal website for art and an important application platform for Artron's "Art Database". Covering calligraphy and painting auctions, art investment, gallery antiques and antiques trading information, etc., it is a trading and exchange platform between professional collection investors with reputable services. For reference.