The present invention provides a warning device and a warning method. The warning device comprises an initial unit and a terminal unit, wherein the initial unit carried on an organism is configured to acquire a physiological state parameter of the organism and transmit warning information according to the physiological state parameter； the terminal unit is configured to receive the warning information, and notify a guardian of the warning information. As the warning device is provided with the initial unit and the terminal unit, when an physical abnormal condition such as heart attack, hypertension attack, loss of consciousness after sudden falling down occurs on the organism carrying the initial unit, the warning information can be timely sent to the terminal unit which may timely notify the organism's guardian to deal with the physical abnormal condition in time, so as not to cause delay in treatment.
