The invention discloses a code-scanning ordering marketing management system based on a mobile internet. The system comprises a server module, an information interaction module, a two-dimensional codemanagement module, a customer ordering module, a merchant management module, an order management module, a positioning module, an online payment module, a timing module and a customer intelligent terminal. The invention further discloses a code scanning ordering marketing management method based on the mobile internet. According to the invention, a specific dining table or dining seat can be locked for a certain time off site in advance; after the electronic two-dimensional code corresponding to the dining table or dining seat of the merchant is scanned remotely in an off-site manner, food ordering, order placing and payment can be directly carried out; meanwhile, the meal serving time can be designated, the problem that consumers queue up and wait on site is solved, the situation that the reservation number exceeds the number of actual dining tables or dining positions can be avoided, customer ordering services can be provided for multiple cooperative merchants with different addresses at the same time, the consumers can have meals nearby conveniently, and more dishes can be selected.