The invention discloses a modeling method for hybrid flow shop energy-saving scheduling by considering a shutdown and restart strategy, which comprises the steps of introducing a machining position ending time variable, a machining position starting time variable and a shutdown and restart strategy variable, building a model based on the idle time, further introducing a standby energy consumptionvariable between two adjacent positions on a machine tool, and building a model based on the idle energy consumption; building five mixed integer linear programming models considering the shutdown andrestart strategy; then performing detailed comparative analysis on the mathematical models from the aspects of the modeling process, the model size complexity, the calculation complexity and the like; solving an HFSP (Hybrid Flow Shop Scheduling Problem) example by using a CPLEX solver, and proving the correctness and the effectiveness of the MILP (Mixed Integer Linear Programming) model. Experiments show that MILP models based on different modeling ideas are greatly different in size complexity and calculation complexity, and the solving effect of the MILP model based on the idle energy consumption is better than that of the MILP model based on the idle time.