The invention provides a smart mine. The smart mine is composed of a central control system, a detection sensing system against mine clearance, a power source, a safety insurance system, an ignition control system, accessory equipment and the like. The mine can sense information which is generated by all the measures of mine clearance through various sensors and be detonated instantaneously, and movement of the mine or radioscopy can also detonate the mine, i.e. the mine cannot be eliminated, destroyed, disabled and transferred by any measure of mine clearance. Thus, the mine can be reliably detonated at a scheduled time in a scheduled place. In addition, when the cipher instruction is input as required, a part of detection sensing devices and the function of timing detonation of the mine are disabled by the central control system, and the central control system starts the function of time-delay self-destruction at the same time, thus the mine can be transferred to a safe place within a limited period of time and then detonated and self-destroyed. A combat theory derived from the mine provided by the invention is discussed in the specification.