In　order　to　make　up　shortage　of　existing　forecasting　models　and　improve　forecasting　precision　and　effectiveness,　a　new　thought　of　combination　forecasting　model　is　given　in　this　paper.　Combination　forecasting　model　based　on　drift　is　proposed　by　studying　the　drift　and　complementarity　of　different　single　forecasting　models.　The　calculation　steps　of　combination　forecasting　model　based　on　drift　are　given.　A　practical　example　on　Chinese　energy　consumption　shows　four　forecast　efficient　measures　(SSE,　MAE,　RMSE,　MAPE)　of　combination　forecasting　model　based　on　drift　are　better　than　single　forecasting　models,　combination　forecasting　model　based　on　drift　can　improve　forecasting　precision　and　it　is　effective　in　practice.　Combination　forecasting　model　based　on　drift　is　an　effective　forecasting　model　to　make　up　shortage　of　existing　forecasting　models.　©　2009　IEEE.