The utility model discloses a B2C transaction platform of self -defined function advertisement is provided for tourism industry chain, including computer module, liquid crystal display module, electronic trading module, camera, memory hard disk, report module, 4G network module, sound card module and clock module in real time, liquid crystal display module, electronic trading module, camera, memory hard disk, to report module, 4G network module, sound card module and clock module in real time and all be connected with the computer module, the camera still is connected with real -time report module. The utility model discloses beneficial effect is : set up sound card module, language identification module, electronic trading module and information display module, it is very fast that the sound card module can improve the playing sound quality, 4G network module speed of pronunciation, and the search is the condition that disconnected network card can not appear, and simple structure has very strong practicality.