The invention discloses an accident emergency drilling system, which comprises a basic database, a three-dimensional scene presentation component, a planning management component and a drilling training component, wherein the basic database is used for storing basic information data of devices, emergency planning data and training knowledge data; the three-dimensional scene presentation component is used for realizing three-dimensional visualization, scene modification, free traveling and information inquiry of the drilling scene and the accident; the planning management component is used for planned three-dimensional digital presentation, and presentation of relevant locations and peripheral information in the planning; and the drilling training component is used for establishing a plurality of roles based on the network, reducing the coordination link, lowering the requirements for operating units and / or devices and reducing the cost for drilling. The invention can solve the problems of insufficient drilling process expression and poor drilling effect in tabletop drilling, and also solve the problems of plentiful drilling coordination links, high drilling cost and the like in actual combat drilling.