The manufacturing process of Carbon fiber reinforced thermoplastic (CFRTP) composite structures is manufactured at high temperature and high pressure using a commercial mold, and then an intergraded molding is undesirable for large-sized structures with complex shape. Therefore, a joining process is necessary for manufacturing of CFRTP composite structures. CFRTP is able to fusion joining using thermal properties. This study aims to reveal the induction welding behavior of CFRTP composites by high-frequency induction heating method. The material used is woven-CF/PPS laminate and woven-CF/PES laminate. The double D type coil was used was for induction heating. The effects of high-frequency power the influence in induction welding were investigated. The experimental results revealed the induction heating temperature and single lap shear strength during induction welding.