© CCM 2020 - 18th European Conference on Composite Materials. All rights reserved. In molding of carbon fiber reinforced thermoplastics (CFRTP), resin impregnation behavior to fiber yarns is very important because higher viscosity of molten thermoplastics inhibits resin impregnation to the interspace among fibers. Resultant resin un-impregnation causes lower mechanical properties of CFRTP. The purpose of this study was to clarify the relation among molding method, molding conditions and resin impregnation to fiber bundles experimentally. In this study, CFRTPs using continuous carbon fiber yarn as a reinforcement and a thermoplastic polyimide which is excellent in heat resistance as a matrix resin were produced by Micro-Braiding, Film Stacking and Powder method. As a result, as the molding time increased, the impregnation ratio increased. The resin impregnation saturated in a certain molding time and the time was shorter the larger molding pressure. In addition, as the resin impregnation ratio increased, the mechanical properties also tended to increase.