In order to improve the economic applicability of engineered cementitious composites (ECC) and ensure its good tensile ductilitythe preparation method of PVA-ECC was studiedand PVA-ECC with high cost performance was prepared to provide more material selection for practical engineering. Firstlybased on the micro-mechanical model and multi-scale structural characteristics of ECCthe optimization direction of ECC mix ratio was determined. Thenthe uniaxial compression test and uniaxial tensile test were carried out by designing 12 groups of ECC specimens with different mix ratios. The effects of silica fumecement -fly ash ratiowater-binder ratioPVA fiber type and CaCO3 whisker on the mechanical properties of ECC were studiedand the optimal mix ratio of hybrid fiber cement-based composites was determined. Finallythe economic value of the hybrid fiber engineered cementitious composites prepared in this paper was compared and analyzed by the value engineering method. According to its cost and performancethree representative mix ratios were proposed: H12 with low costrelatively low tensile ductility and reinforced by domestic PVA fibersH11 with moderate costrelatively high tensile ductility and reinforced by hybrid PVA fibers and H8 with high costhigh tensile ductility and reinforced by Japanese PVA fibers and CaCO3 whisker. This study can provide data reference for achieving the dual goals of mechanical performance optimization and economic improvement.