With the widespread application of satellite payloads in the field of target detection and recognition, such as the atmosphere and ground objects, space infrared camera technology has been rapidly developed, which also necessitates increasingly higher requirements for the technical level of space infrared optical systems. This study analyzed and summarized the research status and development trend of space infrared optical technology by investigating the technical characteristics and changes in typical spaceborne infrared photoelectric loads at home and abroad over the past ten years.