The high-precision radiometric calibration technology is one of the primary technologies of modern remote sensing. The trap-based filter radiometer is a key unit of new optical radiometric standard detectors, and has potential applications in radiometric calibration of field, air-borne and space-borne sensors. The temperature characteristics of trap-based filter radiometer are a primary factor of affecting its precision and stability. Temperature coefficients of standard detectors are systematically studied within large temperature range (20～60 ℃) and at different wavelengths. A temperature controlling device is designed and is used to stabilize the temperature of trap-based filter radiometer with high precision. The temperature controlling device effectively decreases the temperature coefficient of trap-based filter radiometer by nearly one order of magnitude. The results will provide a reliable reference for the future design of standard detectors on-board different platforms and under various temperature environments.