Abstract: Based on the object and significance of integration on pipeline integrity management technologies, analysis and integration on the business process in integrity management and its technology fields involved in are carried out and the architecture of pipeline integrity management technology system is put foreword. In allusion to the links in risk assessment, the authors stressly analyze the Kent Scoring Method, list the risk assessment softwares applied worldwide, modify and perfect the indexes system in Kent Scoring Method and adjust the weighted score of indexes, which form a scoring indexes system more suitable for domestic pipeline system.In the light of links in pipeline inspection and integrity assessment and in line with the actual requirements in defect detection of spiral welds of pipeline, the availability of triaxial MFL testing technology is analyzed by referring to the grading assessment method on crack-class defect in BS 7910. Application practices show that the technical issues formed in the 1970s in inspection, assessment and repair of spiral welds defect in the pipes manufactured in that time can be basically solved by means of the method. Obviously, the integration of pipeline integrity management technologies is an updated, complete and developing process.