The aim of this research was 1) to design the integrated program for the Master of Engineering course in Welding engineering technology at CIT, KMUTNB, and 2) the designed program shall harmonize with the international welding engineer of WIT, IIW. The research procedure was divided into 3 stages. The 1^st stage was to design and develop an integrated program to harmonize the international Institute of Welding (IIW) requirements and the Graduate College. The 2^nd stage was to proceed with a quality teaching and learning process by following the related procedures of CIT and the Graduate College. The 3^rd stage was to evaluate the developed model by examinations. The comparative analysis of compatibility is applied in the 1^st stage for curriculum integration of the subject-based course (MWET) harmonized with the module-based course (IWE) in terms of topics, course contents and teaching hours. The samples focused on 11 students who graduated with a Master of Engineering in welding engineering technology and were granted IWE diploma. The data collection tool was the evaluation form with questionnaires and a 5-level rating scale for the usefulness and appropriateness of the integrated program. The results showed that after students obtained the Master of Engineering Degree and IWE Diploma, the knowledge gained in all four modules was at a relatively high level (X¯=4.30), and the knowledge that could be applied to work was at a high level (X¯=3.94) and (2) this integration program is best suited for industries (72.7%) such as welding engineers and welding coordinators that are required by Thailand 4.0.