In an engine device having a urea mixing pipe (39) which injects urea water into exhaust gas of an engine (1), and an SCR case (29) which removes nitrogen oxides in the exhaust gas of the engine (1), and structured such that an inlet side of the SCR case (29) is connected to an outlet side of the urea mixing pipe (39), an exhaust gas outlet side of the SCR case (29) is connected to an exhaust gas inlet side of the urea mixing pipe (39) where a urea water injection means (76a) is arranged, and an exhaust gas inlet side of the urea mixing pipe (39) is supported to the exhaust gas outlet side of the SCR case (29).