⒈Strengthen measures for prior control. First, it is necessary to strengthen institutional construction. Before the project begins, it is necessary to establish a strict cost management system that takes into account the characteristics and actual conditions of the enterprise, and such a system must be practical and feasible to implement. Once a project cost management system is established, it must be operated in accordance with the relevant rules and regulations. Specifically, every individual or department, as well as any leader or anyone else, must take responsibility by setting an example. However, when establishing systems, it is essential to be detailed and specific, covering issues such as quantity, quality, costs, levels of responsibility, scope of duties, reward and punishment mechanisms, timeline, and various measures. The more stringent and detailed the system, the better it can ensure that no gaps arise during the project’s execution, thereby avoiding the consequences of unexpected situations that might occur during construction. Without rules, nothing can be organized properly; for the actual workers, having clear guidelines to follow is important. Only through the proper implementation of these rules and regulations can conditions be created that contribute to the economic success of the enterprise. Second is the forecasting and planning of project costs and expenses. Before the project begins, a scientific analysis and evaluation must be conducted to estimate the total cost required for the entire project, which will serve as a basis for planning cost control and evaluating performance targets. For the implementation of each project, careful forecasting should be carried out to avoid unnecessary mistakes. The project team members should carry out the preparatory work before the project starts, select advanced construction methods, choose appropriate material suppliers, and develop a cost plan for the project so as to have a clear understanding of the associated costs. Strict approval is applied during construction in order to control expenses. Third is to control the costs of major materials. On the one hand, in terms of quantity, it is necessary to first ensure proper control over the arrival of materials, in order to prevent any shortages in their quantity during the preparation process. Secondly, it is also necessary to avoid losses and waste of material quantities during the project implementation process, as well as losses that occur while storing materials in storage areas. By properly controlling these \"three aspects\" in the handling of materials, it is possible to ensure that there are no shortages in the quantity of materials. On the other hand, in terms of price, it is necessary to prevent prices from being too high. First, it is necessary to understand the market prices as well as the place of origin, quality, and the reputation and reliability of the manufacturers. It’s important to compare options from different suppliers in order to purchase the same quantity of materials at the lowest possible price, thus ensuring both quality and minimal costs. ⒉Measures to strengthen in-process control (process control). It is necessary to: first, strengthen information-based management and improve the level of management in statistical analysis. It is necessary to actively create the necessary conditions, optimize construction plans, improve construction techniques, strictly enforce quality responsibilities, and overcome common quality issues; by preventing quality accidents, avoiding shutdowns, and eliminating the need for rework, costs can be effectively saved. Safety is the guarantee for achieving benefits. First and foremost, safety is the most important task in project management. Project safety management requires timely hazard identification, identification of the key areas that require special attention in terms of safety, increased investment in safety facilities, as well as the establishment of clear management responsibilities and safeguard measures. Meanwhile, the project’s safety manager and safety officers must go to the construction site regularly to ensure everything is in order. Third, strengthen inspection and supervision work. It is necessary to regularly check the implementation and enforcement of established rules and regulations, as well as the compliance with the process requirements and technical specifications in each step. Power held by management personnel must be kept under control, with everyone fulfilling their responsibilities. Oversight of the implementation at all stages is essential; any issues identified should be resolved promptly, and timely feedback on situations should be provided. ⒊Measures to strengthen post-event control. Conducting post-analysis marks the beginning of the next cycle of scientific prediction for preventive control, and it represents a continuation of cost control efforts. While adhering to a comprehensive analysis for each project, timely inspections, analyses, corrections, and supplements are carried out to achieve the goals of cost control and improved efficiency. These measures include: first, conducting a cost analysis. Cost and expense analysis should take into account factors such as the strength of construction management, the level of technical management, variations in material costs, labor costs, machinery usage expenses, other direct expenses, changes in administrative costs, and the surplus or deficit compared to budgeted revenues. The content and data of cost analysis must be true and accurate; factor analysis is commonly used for comparison in order to identify the causes of deviations, propose measures to improve efficiency, and enhance cost management practices, thereby boosting the economic efficiency of the enterprise. Second, conduct assessments of the implementation of project responsibility costs. Project responsibilities must be implemented, ensuring that once a project is completed, it is cleaned up, evaluated, and subject to rewards or penalties.