Construction cost management is crucial for project success. Using BIM technology, companies can better control costs by linking cost and schedule plans, creating a 5D cost model, and using the earned value method for control. BIM helps in data acquisition, reduces human error, and improves cost management. By converting CAD drawings into 3D models and integrating cost, schedule, and other data, BIM enhances project management and resource utilization in the construction industry. The research shows that BIM technology improves cost management by providing timely and accurate information support, allowing for integrated control of schedule and cost.