In order to continue the success era of the K-defense industry, it is necessary to maintain related laws, diplomatic and policy support, and system support, but if marketing strategies are added to this, greater synergy will be exerted. The purpose of this study is to analyze defense export cases from the perspective of STP marketing strategy of K-defense industry and to suggest implications for us. In terms of STP marketing strategy, we analyzed the success and failure cases of K-defense industry by segmentation - Targeting - Positioning stage and suggested implications for how to reflect the characteristics of defense industry exports and the strengths of Korea in defense industry exports. Segmentation suggested the necessity of establishing a customized K-defense export strategy for each country through the establishment of segmentation factors for each defense industry export market, the formation of a dedicated marketing strategy team, and the establishment and maintenance of a network. In order to target, I suggested an increase in the role of non-military for the promotion of defense industry structure and joint development of weapons systems. In order to make the K-defense industry brand, Positioning added marketing strategy to the defense industry development basic plan, implemented the military pilot operation system, presented the appropriate level of operational requirement performance and rationalized the test evaluation standard. This study was conducted with fragmentary information and media reports from companies and governments related to export of the K-defense industry, and although there are limitations in the study due to the lack of related previous studies, the implications were derived at the level of suggesting the necessity and implications of marketing strategies.