Abstract: The risk of an integrated unit price mainly depends on the cost of materials, business management fees and profit. This paper analyzes the risk factors of the integrated unit price that constitute the elements of an integrated unit, conducts the risk assessment and puts forward a balanced comprehensive price quote. It is the major approach to control the risk of an integrated unit price. The risk of material cost, business management fees and profit of the argument is discussed, and an integrated unit price risk control method is put forward.