An object of the present invention is to provide an engine device which can improve an assembly workability of an engine (1) and can improve a maintenance workability of the engine (1) while it is possible to well maintain a ventilation performance in an outer peripheral portion of the engine (1). The engine device of the present invention has a first case (28) which removes particulate matters in exhaust gas of the engine (1), and a second case (29) which removes nitrogen oxides in the exhaust gas of the engine (1). The second case (29) is connected to the first case (28) via a urea mixing pipe (39). The engine device is provided with a plurality of support leg bodies (82, 84, 86) which are connected their one end sides to the engine (1), and a support base (87) which is connected to a plurality of support leg bodies (82, 84, 86). The first case (28) and the second case (29) are arranged in the support base (87).
