A synergistic fungicide composition, a formulation method and a use thereofareprovided. The composition contains two active components A and B, where theactivecomponent A is benziothiazolinone, the active component B is dimethomorph, andthe weightratio of the two components is 1:50 to 50:1, and preferably 1:30 to 30:1. Testresults showthat, the fungicide composition has a significant synergistic effect, and moreimportantly, theapplication amount and the use-cost are reduced. The fungicide composition iseffective inpreventing and treating certain fungal diseases of crops such as food crops,vegetables andfruits.
