Various fuzzy time-series forecasting models have been proposed. However, most of them have the following problems: (1) the forecasting values are a single value; (2) When unexpected conditions happen, the historical data can not be used to predict the situations properly. In order to solve the problems mentioned above, this paper proposes an integrated time-invariant fuzzy time series forecasting model that combines fuzzy time series forecasting method and experts’ judgment to predict the time series. The fuzzy forecasting values (fuzzy number) provide decision makers useful information. One example is used to validate the accuracy of the proposed model. The results indicate the proposed model is better than the other existing models. At last, the proposed model is implemented in a real-word case.