There is provided an engine device structured such that it can improve a workability for processing a common rail system, or attaching and detaching it, in spite that it is possible to reduce a damage of a common rail due to a collision. In the engine device structured such that the common rail is provided in one side of an engine block, and the common rail is arranged so as to come close to an air intake manifold, the common rail is provided in parallel obliquely below the air intake manifold, and the common rail is tilted in such an attitude that a fuel injection pipe connector arranged in an upper surface side of the common rail is directed outward and obliquely upward.