Research conclusions: ( 1) The material market price should be as the material general estimate prise for the project with new general estimate． The prise different coefficient should be used for adjusting the general estimate made with the basic prise method for the approved project． The recalculation of the prises of the materials supplied by Party A should be made when checking up the general estimate and the cost of the materials supplied by Party A with settling accounts should be adjusted on the base of the recalculation． ( 2) The dynamical adjustment should be made for the materials quantities as the actual supply limit and the materials saved by contractor should not be deduced from the contract．