The work aims to research the specific application of block chain technology in military field, especially the quality monitoring of military clothing and accoutrements, so as to strengthen the quality monitoring of military clothing and accoutrements and improve the benefit of clothing and accoutrements support. The work flow of military clothing and accoutrements quality monitoring was systematically analyzed. Based on the corresponding technology, the current operational mode of military clothing and accoutrements quality monitoring was combined to research and analyze the optimization of the quality monitoring of military clothing and accoutrements by the block chain technology. Based on the monitoring of the quality of military clothing and accoutrements by the block chain technology, the whole-process records of the information on production, processing, storage, transportation and distribution of military clothing and accoutrements were achieved, and the quality monitoring level of military clothing and accoutrements was improved from the source. The research results are of great significance to the effective application and promotion of block chain technology in the quality monitoring of military clothing and accoutrements, and to ensure the quality of military clothing and accoutrements and the winning of the modern war.