Taking the construction engineering cost practice course for example, this paper proposes constructive ideas and implementation strategies for integrating courses under the 1+X certificate system, considering the current situation and challenges faced in course integration. It combines the assessment content and evaluation criteria of the 1+X certificate system to enhance talent development direction, optimize course resources, refine teaching design, improve course assessment and evaluation methods. Furthermore, it summarizes and analyzes the outcomes of these implementations with an aim to enhance teaching effectiveness while providing valuable insights for promoting "1+X" course integration across other professional disciplines.