Abstract: To solve the problems of immersion and fidelity in the combat training of surface warship, the current form of training is analyzed, the assumption of combat training of surface warship under metaverse is proposed. The composition of the training system and the functions of each component are preliminarily designed, the relative technology of the metaverse needed by the realization of training system is explored. The development trend of the metaverse technology is considered, the training planning is divided into six development stages, such as reality against reality, hard distinguishment between the true and the false, full-scale war. The composition modes, training scales and training effects of opposing parties in each stage are given.