Based on the application requirements of infrared detection systems for small-volume cooled infrared detectors, a new type of non-vacuum cooled infrared detector miniaturization packaging technology is proposed. The key points of its structure and process design are explained, the component packaging is realized, and the performance test of the coupled J-T refrigerator is carried out. The results show that the design scheme described in this article can achieve 128×128 (15 μm) InSb chip packaging, the components are less than or equal to Φ20 mm×15 mm, the weight is about 5 g, and the performance is significantly improved compared with existing products. Its detection and imaging performance can meet the requirements of use. The start-up time of this component can be less than 4 s, and the cold storage time is currently 6 s. The refrigeration performance can be further optimized and improved in the follow-up study of the joint refrigerator design.