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Temperature autonomous management is the main form of satellite active thermal control. After comparing the received temperature data of the controlled equipment with temperature threshold solidified in the software, the temperature autonomous management system sends corresponding commands to control on or off of the heater. This can ensure that the temperature of equipments or components on the satellite is always in a reasonable range and the reliability and safety of the satellite will not be affected because of too high or too low temperature. Due to the change of the temperature management interface of some equipment in some satellites,the traditional autonomous management system has some defects in the temperature control to the new interface. The thermal cycle alarm occurred in the ground test. The temperature autonomous management software is optimized by increasing the number of autonomous retries of the on-off command of the same heater cycle. The experimental results show that the optimized temperature autonomous management system can adapt to the new interface well. The optimized system has been applied in many satellites. It can provide a reference for the future satellites.