The scene security civilization construction measure expense as the important cost of an achievement which guarantees construction security and the civilization, it composes whether reasonable, whether truly lands on feet, directly affects the construction projects the safety in production management level.

The analysis and research for compete force of step item cost in bid quoted price to bill quantity of construction;

The step item cost,one of three important parts in the bill quantities of construction,was fully analyzed in this paper and its importance was specifically stressed in the building construction.