Abstract: Construc-tion companies should look foropportunities in the marketcconomy, be ready to compete,establish themselves by competi-tive edges, survive and developamidst fierce market competi-tion. Therefore, to improve thecontrol of construction cost iscrucial to the transformation ofthe operating mechanism of con-struction companies. The controlof the cost of construction proj-ects aims to reduce project costand increase the economic profit.mechanism of㈧E5 Tk co.rioloftbe cost ofcons"ucti㈣proj cts aims∞reduce project costs and lncrcasc thoeconomic profit