An object of the invention is to provide an engine device which improves a general-purpose property of an ECU (11) carrying out a drive control of an engine (70) and a regeneration control of a DPF (50). The engine device of the invention is provided with an exhaust gas purifying device (50) which is arranged in an exhaust route of the engine (70), the ECU (11) which controls a drive of the engine (70), and a variable memory means (33) which stores a general-purpose regeneration program (GPM) selectively executing a plurality of regeneration modes with respect to the exhaust gas purifying device (50) and a flag table (FT) corresponding to an optional regeneration mode, and is rewritable. The ECU (11) executes the general-purpose regeneration program (GPM) in accordance with a regeneration mode which is selected on the basis of the flag table (FT).