Conventional RTM process is limited use for the production of advanced composite materials, since RTM process due to its inherent processing problems has difficulties in effectively removing voids formed during resin filling and curing stage as well as loading high fiber volume. In this work, Advanced Resin Transfer Molding(ARTM) process using autoclave was developed to overcome problems such as low fiber content and void formation encountered in conventional RTM. The experimental results showed that void-free epoxy/carbon fiber composites of 55±2 % fiber volume fraction could be produced by the ARTM process only when internal vacuum was initially applied and consolidation effect was induced by the autoclave pressure. In ARTM process, the mold-filling pressure and the consolidation pressure were controlled by the autoclave in a continuous fashion. In addition, the processing variables of consolidation pressure, resin bleeding, and surface formers were investigated to identify the ARTM processing and structural characteristics for high performance composite materials. Visualizing the resin-front advancement, isotropic or anisotropic permeabilities of several reinforcement fabrices were collectively determined based on Darcy’s law. A finite element/control volume method was used to predict the flow front advancement and degree of cure during the ARTM process.