Provided is an information network system in which a treatment subject can be informed that there is new information related to a massage machine when using the massage machine and the treatment subject can check and decide the information. There are provided a massage machine that has a treatment portion treating a treatment subject, a control unit controlling the treatment portion, and an operation unit for operating the treatment portion via the control unit; and a communication server that is connected to the control unit via a communication network. The communication server emits information related to the massage machine. The control unit is configured to issue a notification of reception of the information through a new arrival notification portion upon the reception of the information.