The curriculum of hardware engineering is closely related with the enhancement of problem solving ability based on computing thinking, because the subjects require mathematics and probability/statistics to be taught in conjunction with necessary tools as well as linked education. The contents of major curriculum in the hardware engineering are organized into education of mathematics and probability/statistics, programming education for control and automation, and major education. First, it can pursue mathematical and probabilistic/statistical capacity enhancement through problem solving ability based on computing thinking. Second, the detailed components of computing thinking can be used to enhance the programming capability. Third, it can be maximized in hardware engineering education through synergy effect by merging with the above items. The purpose of this study is to suggest an educational plan for enhancing the capacity of major courses in hardware engineering through computing thinking. To achieve our purpose, we firstly proposed the necessity of inquiry teaching related to mathematics and probability/statistics in the operation of hardware engineering curriculum. Secondly, we suggested the role of mathematics and probability/statistics to increase computing thinking. Thirdly, we attested the role of mathematics and probabilities/statistics to enhance problem solving ability based on computing thinking. Lastly, we tried to present the synergy effect of major education in hardware engineering through computing thinking.