The invention provides a method for reducing strip breakage of oriented silicon steel intermediate annealing. The method comprises the following steps of: in the intermediate annealing process of a continuous annealing furnace, ensuring the temperature of a steel plate to be 55-80 DEG C before furnace entrance by raising the alkali-washing-section cleaning and alkali-spray-washing-section alkali liquor temperature of the annealing furnace and air temperature of a hot-air dryer at the outlet of the alkali washing section; and ensuring the temperature of the steel plate after furnace discharge to be 85-100 DEG C by raising the air temperature of the hot-air dryer at the outlet of the annealing furnace and lowering the output power and cooling capacity of a fan at the protective gas cycle injection cooling section. During oriented silicon steel intermediate annealing according to the technical scheme, the strip breakage rate is greatly reduced, the time of causality is lowered, the unit operability is improved, and the consumption is lowered.