The embodiment of the invention relates to the technical field of wearable equipment, and discloses a wearable equipment based automatic alarm method and wearable equipment. The wearable equipment based automatic alarm method comprises the steps of collecting physiological characteristic data of a wearer of the wearable equipment; judging whether the physiological characteristic data of the wearer exceeds a preset range of normal physiological characteristic data or not, if so, reading a specified alarm number from an address list of the wearable equipment, and calling the specified alarm number; and turning on a camera of the wearable equipment to carry out shooting, and sending the shot content to the specified alarm number. Implementation of the embodiment of the invention can enable the outside world to timely learn that the wearer of the wearable equipment encounters an emergency, so that personal potential safety hazards of the wearer of the wearable equipment are reduced.