The invention discloses an on-line settlement method. The method comprises the steps that an identification picture of a receiving end is input in a first network terminal, the first network terminal searches for the receiving end corresponding to the identification picture on a network server according to the identification picture, obtains a bill from the receiving end and operates a corresponding account, and then settlement is carried out through a network according to the searched bill. The invention further discloses a device adopting the on-line settlement method. According to the technical scheme, settlement of transactions can be finished conveniently and fast, and the identification of merchants can be advertised conveniently due to the fact that users shoot the identification picture each time.