The invention particularly relates to a bill bargaining method, a first client, a server, a system and a terminal. The bill bargaining method comprises steps that a transaction event is generated, and a transaction object list is acquired; a first quotation request event is generated according to the transaction event and the transaction object list, and the first quotation request event is sent to the server; at least one second quotation request event sent by transaction objects is received; quotation prices of all the transaction objects are displayed after the preset transaction time is over, and a target transaction object and a target transaction price are generated. The method is advantaged in that a bill transaction event is sent to multiple transaction objects, multi-person bargaining with multiple transaction objects can be realized, multi-person bargaining for different bill types can be respectively realized through employing multiple clients, both-way quotation can be acquired timey, the bill transaction time is saved, bill transaction efficiency and a success rate are improved, and both-way benefits of bill transaction are maximized.