The influences of interface treatment, interfacial agent type, curing time on the permeability coefficient and splitting ultimate force of the polyvinyl alcohol engineered fiber reinforced cementitious composites（ PVA ECC） and concrete bonding interface were investigated by relative permeability coefficient method and splitting tensile test method. The results show that with the increase of interfacial roughness, the impermeability and bonding properties of the bonding interface enhance. For different interface agents, the bonding interface with cement expansion paste has the best impermeability, while that with epoxy resin interface agent has the largest splitting ultimate force. Compared with the brushed flat interface cement expansion paste(S P) composite specimens cured for 14days, the permeability coefficient of the S P composite specimens cured for 28days was decreased by 752% and splitting ultimate force was increased by 350%. A linear expression between the impermeability and post penetration splitting ultimate force of bonding interface is established. The permeability coefficient decreases as the splitting ultimate force increases.