There are provided an engine disposed between right and left front side frames provided in an engine room, a radiator disposed obliquely such that its upper end is located forward in a disposition space in front of the engine, an air cleaner disposed above the radiator, and an electronic control device disposed in a space above the radiator and below the air cleaner.Accordingly, there can be provided a disposition structure of engine functional components for a vehicle which can properly dispose the electronic control device with respective to the radiator and air cleaner, preventing the temperature of the electronic control device from increasing.