The invention provides an engine warming control method and device for an engine. The method includes the steps that after the engine is started, the current temperature of cooling liquid of the engine is detected; the temperature threshold interval which the current temperature belongs to is judged according to multiple preset temperature threshold intervals; and the current position of a ball valve is controlled according to the temperature threshold intervals, and at least part of parts in multiple parts of a cooling system of the engine are heated through the cooling liquid of the engine. According to the engine warming control method for the engine in the embodiment, the parts in the cooling system of the engine are gradually heated in a staged manner along with gradual rising of the temperature of the cooling liquid in the engine, and therefore the engine warming time of the engine during cold start is greatly shortened, the engine warming efficiency of the engine is improved, friction of the engine during cold start is reduced, and the service life of the engine is prolonged while the oil consumption and the discharging amount of the engine are reduced.