An attempt has been made in the present experimental research work to investigate the effect of hybridization of varying composition of glass fiber on erosion wear characteristics of flax and sisal (flax/sisal) fibers reinforced hybrid composites (FSHC) by varying epoxy resin (polymer matrix) loadings. All the composite specimens subjected to erosion wear tests based on ASTM standards. Using Taguchi principle design of experiment is carried out for erosion wear properties for different proportion of reinforcement and matrix material so as to identify the factors regulating the erosion rate. The theoretical erosion wear properties are determined by applying the concept of design of experiments (DOE) using Taguchi principle. The experimental results were found to have good agreement with the theoretical results. The tested specimens are examined through SEM. The erosion wear mechanisms are predicted by examining the SEM images.