The invention relates to an equipment owner identity real-time identification method and device based on an acceleration period change rule. An acceleration sensor is arranged in equipment, and an equipment processor receives data of the acceleration sensor and carries out identity identification. The method specifically comprises the following steps that by means of acceleration projections of the acceleration sensor in the X axis, Y axis and X axis, an acceleration amplitude value of the acceleration sensor is obtained in real time; according to the acceleration amplitude value in the period, the period change rule is calculated through the clustering algorithm, and a focusing area of owner period data points in a multi-dimensional space is determined; three-axis data of the acceleration sensor of the equipment is collected in real time at a preset time interval, a corresponding acceleration amplitude value is calculated, and the identity of the owner is judged according to the focusing area of the owner period data points in the multi-dimensional space. By means of the method and device, continuous real-time identity monitoring can be achieved under the condition that use habits of a user are not interfered too much, and the possibility of counterfeit is reduced, so that the safety is improved, and the method and device have an important guiding significance for information safety.