在實際的投資環境中，企業未來的經營往往不能事先確定，因此，專案投資決 策往往包含許多的不確定性。本研究以模糊多目標模式來表示專案投資問題，其目標函數包 含多個以模糊集合表示的企業經營目標，分枝定限法被應用來求解，以提供投資決策。我們 以實例描述這個模糊目標規定限法被應用來求解，以提供投資決策。我們以實例描述這個模 糊目標規劃的決策模式，結果顯示本模式能得到一個良好的解，使得企業現在與未來之經營 與投資效益，能同時達到最佳化的目標。

　　　　　In real-world investment decision, the future operation of business can not be certain. The project investment decisions involve much uncertainty. In our research, we use a fuzzy multi-objective model to represent the project investment problem. The objective function contains fuzzy multi-objectives of business operation. A branch and bound procedure is utilized to find out the decision solution. A numeric example is used to illustrate the decision process. The result shows that a good solution can be achieved which simultaneously optimize PW and horizon criteria.