：In order to prepare high-performance green concrete,fly ash with different mass fraction （0%~30%） was used to replace cement,and different mass fraction of ZnO nano particles（0%~3%） was added into the concrete to improve the com-pressive strength,tensile strength and chlorine resistance of concrete.Through the preparation of 30 groups of concrete test block test,the results showed that 1）with the increase of ZnO nano particles content,the compressive strength,tensile strength and chlorine resistance of concrete with ZnO nano particles fly ash gradually increased under the same replacement rate of fly ash,2）when the content of nano ZnO was the same,the compressive strength and tensile strength of ZnO nano parti-cles fly ash concrete gradually decreased with the increase of replacement rate of fly ash. However,the chloride resistance of ZnO nano particles fly ash concrete was gradually improved.Therefore,when the content of nano particle ZnO was 1%,the re-placement rate of fly ash was recommended to be below 10%;when the content of nano particle ZnO was 2%,the replacement rate of fly ash was recommended to be less than 20%;when the content of nano particle ZnO was 3%,the replacement rate of fly ash was still below 20%,so it was not recommended that the content of nano particle ZnO exceeded 2%.