As the important part of infrared detector component, bellows J-T coolers have been widely used. When used in the long-term vibration environment, the bellows as the self-control element will suffer from abnormal flow rate and failure of self-control. In order to improve the reliability of the cooler in the long-term vibration environment, the structure of the cooler is changed in this paper. The two-point support structure with diaphragm spring and PTFE guide ring is innovatively used which has a reliable radial support for the elastic moving parts of the cooler. It significantly improves the anti-vibration performance of the cooler, and has achieved good effect in practice. In addition, the research on the design in this paper also provides ideas for improving the anti-vibration performance of bellows J-T coolers in the future.