This paper uses SWOT analytical method, makes SWOT analysis situation diagram, enumerates internal and external minelaying operation factors, establishes minelaying operation comprehensive analysis database, makes comprehensive analysis according to operational environment, and displays analysis results of influence factors. The expert group decides analysis conclusion of influence factors through holding the consultation. Combat organ decides minelaying operation countermeasures through holding the consultation according to requirement of general operational mission and analysis conclusion of expert group. Analysis method for minelaying operation countermeasure based on SWOT is discussed.