Focusing on the pipeline suspension detection technology, the development trend is analyzed on the basis of summarizing its technology development status. The detection accuracy of the artificial diver detection, underwater robot detection and sonar detection methods is poor and the efficiency is low. The detection accuracy of the underwater laser detection and distributed optical fiber active heating method is greatly improved, but the cost is very high, which does not meet the needs of the current industry. In comparison, due to the direct contact working mode, the real state of the suspended pipeline is accurately reflected by the detection result of the pipeline intelligent detection robot, and the detection cost is low, which means that the pipeline intelligent detection robot will be the main technical means for the future submarine pipeline suspension detection and is of a relatively broad development prospect with great development advantages and potentials.