摘要：The Alpha Magnetic Spectrometer(AMS) is an instrument for the international scientific experiment,composed of six detectors and 650 *** objective of AMS experiment is to search for dark matter and anti-matter in *** this paper,the thermal control system for AMS cryocoolers is designed,analyzed and experimentally *** loop heat pipes(LHPs) as the main heat dissipation component,the thermal control system has sufficient heat dissipation capability to prevent the cryocoolers from over temperature(+40℃) in hot environment,meanwhile to ensure temperatures of the cryocoolers higher than their lower limit(-20℃) in cold *** results show that the thermal control system for AMS cryocoolers functions stably satisfying design specification.