The invention discloses a method and system for sending a message. The method includes the steps that a sending terminal receives an instruction for sending the message and performs priority level setting on the message according to the instruction so that priority level information can be incidental to the message; the sending terminal sends the message including the priority level information to a server; the server receives the message, and checks whether the message includes effective priority level information or not; if the effective priority level information is included, the server performs reordering on the message according to a priority level and then sends the message to a receiving terminal, or the server directly sends the message to the receiving terminal according to the priority level; if the effective priority level information is not included, the server sends the message to the receiving terminal according to a default sequence; the receiving terminal receives and reads the message. Through the mode, misunderstanding and troubles caused by the sending sequence of the message can be avoided, the utilization rate of the message of the receiving terminal can be improved, and customer experience can be improved.