In order to study the mechanical properties and microstructure evolution of Polyethylene Fiber-Engineered Cementitious Composite (PE-ECC) and different FRP under freeze-thaw cycling, rapid freeze-thaw experiments were performed on PE-ECC, PE-ECC-BFRP and PE-ECC-CFRP. The mass loss rate, relative dynamic elastic modulus, three-point bending test and scanning electron microscopy of the specimen under different freeze-thaw cycles were studied. The results show that: The mass loss rates of PE-ECC and ordinary mortar concrete is 1.67% and 13.5% respectively after 150 cycles of freezing. The crack inhibition effect of PE fiber can well constrain the spalling of cement mortar; Adding CFRP mesh cloth or BFRP mesh cloth to PE-ECC cement fiber matrix material can improve the strength of specimen and reduce the propagation of micro-cracks inside the cement fiber matrix material, and improve the frost resistance of cement fiber matrix material; Compared with PE-ECC, the maximum load capacity of PE-ECC-BFRP specimens and PE-ECC-CFRP specimens is increased by 22.5% and 67.3%, and the maximum deflection is increased by 28.2% and 76.7% respectively. Under the action of freeze-thaw cycle, FRP mesh cloth can improve the bending resistance and maximum flexural ability of PE-ECC.