Abstract: The components, operating principle, technical features, using method, and application effect are illustrated for the studied high pressure high temperature tubing device. The devise possess the experimental conditions of high pressure and high temperature for compression tube, and it could replace the packer as the carrier for tubing experiment. Through changing the center tube, the experiments of compression tubing with different sizes can be carried out. The device supplies a novel technique for tube monitoring, and an experiment base for compression tubing experiment. Many compression tube monitoring experiments have been conducted and the success ratio is 100%.