Abstract: Calculating the engineering quantities for light steel stud partition walls has always presented a challenge due to their complex construction. Traditional Building Information Modeling (BIM) software tools are limited by large data volumes, cumbersome operational procedures, and high hardware requirements, hindering their widespread application in cost management for light steel keel partitions. This paper uses NIVIOBIM lightweight technology to build a display and calculation platform for light steel keel partition walls. Using JavaScript, HTML, CSS languages, and MySQL database, automatic classification of partition walls according to their construction forms and calculation of engineering quantities were achieved. At the same time, the display function of the skeleton model of the keel partition wall was developed. Finally, taking a practical engineering project as an example, the model of the light steel keel partition wall was uploaded to the platform and compared and analyzed with the manually calculated engineering quantity. The results demonstrate that the platform provides excellent interactivity for displaying the steel keel structure and offers accurate and reliable quantification capabilities, effectively supporting digital and intelligent management.