Complete credit system management is the trend of Chinese higher education reform. The engineering training course is practical and it is important to train students’ ability of engineering practice and innovation capability in colleges. We put forward a view that open engineering training teaching model is the only way to realize the organic combination of engineering training and complete credit system based on the analysis of the characteristics of complete credit system and engineering training teaching. We analyzed problems and shortages of the complete credit system applied in engineering training teaching mode, and presented scheme and the implementation of the open engineering training teaching mode under the complete credit system, which can solve problems in the application of the complete credit system in the engineering training teaching in most colleges.