This paper studies the correlation between the life trajectory information of protection equipment and key indicators of equipment, and comprehensively analyzes the life trajectory information of protection equipment. Research on accurate and efficient visualization technology of equipment life trajectory information, comprehensively display the panoramic information of protection equipment, and provide technical support for equipment operation and maintenance, maintenance and technical transformation. According to the basic attributes, behavioral characteristics and evaluation labels of the protection equipment, the Apriori algorithm is used to study the correlation between the life trajectory information of the protection equipment and the key indicators of the equipment, and comprehensively analyze the behavior characteristics of different stages of the whole life cycle of the protection equipment.