The invention discloses an air breakage preventing system and method for a stove change operation of a hot-blast stove. The system comprises a hot-blast stove detecting unit, a valve position feedbackunit, an upper computer, a valve position clamping unit and a delay unit; the hot-blast stove detecting unit is used for detecting if the hot-blast stove belongs to an air supply state and an interlocking state and meets stove change conditions; the valve position feedback unit is used for detecting a present valve position openness; and the upper computer controls the valve position clamping unit to clamp a valve position according to information output by the hot-blast stove detecting unit and the valve position feedback unit. Through development and application of an air breakage preventing function for the stove change operation of the hot-blast stove, the production safety of a blast furnace is guaranteed, the air breakage accident of the blast furnace is prevented, and excellent foundation is laid for safe and stable production of the blast furnace.