The paper studied the research status of fuzzy decision on the complex phenomenon. It proposed that the current researches focus on subjective fuzzy and objective randomness in language research information about this field, and the uncertainty factors influencing on the decision alternatives. To solve above problems, a new kind of fuzzy decision method was presented with cloud model and SPA. The method was used for the study of“The new rural energy development and utilization plan”to establish the renewable energy development model, and the corresponding solution was given. An active result was obtained in the experiment compared with the fuzzy twotuple linguistic analysis method, and it shows the method is rational, efficient and practical. The paper studied the research status of fuzzy decision on the complex phenomenon. It proposed that the current researches focus on subjective fuzzy and objective randomness in language research information about this field, and the uncertainty factors influencing on the decision alternatives. To solve above problems, a new kind of fuzzy decision method was presented with cloud model and spa. The method was used for the study of “The new rural energy development and utilization plan ” to establish the renewable energy development model, and the corresponding solution was given. An active result was obtained in the experiment compared with the fuzzy twotuple linguistic analysis method, and it shows the method is rational, efficient and practical.