The invention relates to a dynamic generation method and system for a power first-aid repair drilling scheme. A drilling parameter is received, and a structured preplan and drilling scheme model is defined according to the drilling parameter and a pre-stored text preplan. A drilling plane is made according to the drilling scheme model, an organization institution and a corresponding handling method are extracted from the structured preplan according to the drilling plan and the drilling parameter, and a preliminary simulated drilling scheme is obtained. According to the preliminary simulated drilling scheme, the drilling situation is detailed to obtain and output a drilling scheme. An operation staff can input the drilling parameter according to practical requirements, the drilling parameter is combined with the pre-stored text preplan for processing, and a drilling scheme is obtained and output. A participating organization can use the drilling scheme as an emergency preplan to participate in drilling, carries out simulated drilling for the emergency situation, the emergency event handling capability can be improved, and the handling efficiency and accuracy for city emergent events are improved.