The craftsman is a service o2o platform based on lbs (location placement services) that allows consumers to look for artisans independently. Fast and reliable construction materials installation services for offline consumers, half-packing and renovation services for house improvements, installation and after-sale services for skycats on the line and kyoto merchants, and deep consumer value excavation. The main problems are: one, the difficulties faced by consumers in finding manual craftsmen during renovations and maintenance; two, the problems experienced by artisans and craftsmen in finding work; and three, the difficulties encountered by dealers in the sale of construction materials and the difficulties encountered by consumers in choosing construction materials. Trades and craftsmen provide information and advice to users on the renovation of houses. A nice display: to give users access to design references. Refurbishment log function: consumers can see the case of a nearby craftsman. Different from traditional home renovations, the trades and crafts platform allows clients to face each other directly and de-broker the various intermediate costs of the renovations, such as management fees, designer kickbacks, clerk fees, project management fees, company cash collections, etc., to be saved at least 30 per cent。