The accuracy of enrockment measurement in channel projects affects cost accounting directly.Thus,it is effective to improve the accuracy of enrockment measurement by adopting a reasonable and scientific method to measure the weight of the first ship.To counter the problems arisen in the engineering practice and in utilizing the method of weighting the first ship to measure stone,we carry out an analysis and propose feasible measures to improve the accuracy of enrockment measurement and control the cost of rock effectively,providing a technical support for the cost accounting and cost control of similar channel regulation projects.