To provide the data communication managing system of a metabolic state of a testee, which can continuously and finely manage the metabolic state of the testee by a manager having technical knowledge.

The data communication managing system 11 of the metabolic state has a center management computer 12 managed by the manager having technical knowledge, a first terminal computer 13 operated by the doctor of a general medical organization near the testee, terminal computers 14, and 14a to 14c, which are operated by the testees, and a communication line 15 connecting the computers. The online communication lines of the Internet, intranet, a telephone line and radio communication are used for the communication line 15. Physical information of the testee, which is inputted from the input means 11, 31 and 41 of respective computers, are processed by the center management computer 12, are appropriately managed by a manager and can be outputted to the doctor and the testee.