Abstract: Based on the analysis on the procurement characteristics of electrical and mechanical equipment, the effective cost control strategies for procurement of electrical and mechanical equipment of hydropower station under EPC mode is put forward with Qinglongxia Hydropower Station as an example. The results show: on the premise that the program safety requirements and the demand of EPC contract are both met, the equipment procurement can attain favorable economic results if the general contractor of EPC program conducts optimal design and quota design, meanwhile, implement tendering system, and select the best supplier in the tendering and design stage of the project. The general situation, the relationship among project design, equipment procurement and construction under EPC mode, cost control strategy in procurement, quota design based on tight integration of technology and economy, cost control evaluation are introduced.