In order to select the plan for a hydraulic project the conception of the entropy principle of the information theory has been introduced . this paper summarized as the problems lined up non - restraint and restraint project which are based on their characteristics weight coefficient and presented a method of real combined inherent information of projects chosen with decision - maker subjective sense 为了解决水利水电投资方案的优选问题，本文引入信息论熵的概念，并以此为基础，总结此类问题的特点，将其分为无约束方案排队问题和有约束方案排队问题，并相应提出一种结合优选方案的固有信息和决策主观判断力的使用权值的方法，然后建立模型。
