It is of great significance to construct “intelligent connection transportable pressure special equipment”， through the integration of traditional technology and advanced sensing、internet of things、artificial intelligence、big data and other new technologies. The future development direction and trend of transportable pressure special equipment is intelligent connection transportable pressure special equipment. A new mode of "intelligent inspection" will be established for intelligent connection transportable pressure special equipment. The basic characteristics of intelligent inspection for intelligent connection transportable pressure special equipment are analyzed. Taking the tube trailer as an example, the characteristics of intelligent inspection are further analyzed and compared with the traditional inspection from all aspects of the whole inspection process. The key technology of intelligent inspection of tube trailer were put forward, which would provide guidance for promoting related work.