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The correction control theory of rockets, based on semi-active laser-guided technology and impulse correction technology, was brought forward. Trajectory model of rockets with multiple impulse correction control system was established and simulated by computers. The result shows that on certain conditions, the correction system could reduce the distance between a target and the point of fall of rockets from 70.3 m to 2.1 m. According to an adaptive correction arithmetic, the correction coefficient eta can be changeable during correction. When the distance to be corrected is too far, the arithmetic is superior.