Abstract: In order to evaluate the reactive powder concrete resistance to sulfate and freezing-thaw cycle coupling actions, the mass loss rate, relative dynamic elastic modulus, compressive strength and compressive strength of corrosion resistance coefficient of common silica reactive powder concrete (P) and high resistance to reactive powder concrete (GP) in different coupling cycles are determined through the test, and the effects of fly ash and slag substitution amount on the resistance to sulfate and the effect of freezing-thaw cycles coupled damage of reactive powder concrete are studied. The test results show that with the increase of coupling cycles, the mass loss rate of P and GP changes to a less extent, and the relative dynamic corrosion coefficient of elastic modulus, compressive strength and compressive strength of resistance with the number of cycles coupled increasing, first increased and then decreased. When the coupling cycle times are 9 times and 6 times, the compressive strength of P and GP reached a maximum at 168.65MPa and 157.69MPa; the addition of fly ash can improve the sulfate resistance of concrete, as well as the freezing-thaw cycles and coupling actions, and when the addition amount is 30%, the best effect of improving is obtained. Adding the slag can improve the resistance to sulfate and freezing-thaw cycle coupling actions of concrete. Compared to the relative dynamic elastic modulus, compressive strength is more suitable for the evaluation of resistance to sulfate and freezing-thaw cycle coupling actions of reactive powder concrete.