Abstract: High Operation Temperature （HOT） infrared detectors have become an important development direction for the third-generation of infrared detector technology due to the advantages of smaller size, lighter weight, lower power consumption, higher performance and lower price. In response to the application requirements of miniature Stirling cryocoolers for HOT infrared detectors, this article conducted a comparison of different HOT infrared detectors and the corresponding cryocoolers both domestically and internationally. A numerical simulation of the rotary integral Stirling cryocooler for HOT infrared detectors was carried out. Based on the numerical calculations, the manufacturing and experimental testing of the designed miniature rotary integral Stirling cryocooler were carried out. The results indicate that the cooling capacity of the Stirling cryocooler increases with the increase of regenerator mesh count within the range of studied structural and operational parameters. However, the thermodynamic efficiency of the Stirling cryocooler shows a trend of increasing first and then decreasing with the increase of regenerator mesh count. There are an optimal regenerator length, gas flow area per unit mass flow rate of the regenerator cold end, sealing clearance, operation frequency and charging pressure to maximize the thermodynamic efficiency of the Stirling cryocooler. When the gap between the compression piston and the cylinder exceeds 7 μm, there is a significant decrease in the cooling capacity and the thermodynamic efficiency of the Stirling cryocooler. Optimal performance of the Stirling cryocooler is achieved when the clearance between the displacer and the cold finger is maintained within the range of 80 μm to 90 μm. A HOT infrared detector was processed and tested using the designed miniature rotary integral Stirling cryocooler. The test results indicate that the cooling time of the miniature rotary integral Stirling cryocooler is 2.73 min@150 K@23 ℃ and the corresponding cooling capacity is 0.65 W@150 K@23 ℃. The maximum and the stable power consumptions of the miniature rotary integral Stirling cryocooler are 14.4 W and 4.8 W@150 K@23 ℃, respectively.