According to the situation of the construction market recently if the unit in charge of construction wants to exist and develop, they must have a set of unit quota on the actual basis of their own. This is very important. The unit quota must reflect the technical advantages in some places. All unit price of the unit quota must carry out dynamic management. The average cost of individual in the unit quota should be lower than the average cost of society. The unit quota should be advanced and reason able. The usage of the unit quota can raise the unit efficiency, standard the market helpfully and increase the percentage of possession. And it can suit the list of the project amount too.