Portable tamping tool, with internal -combustion engines such as gasoline engine and diesel engine as power unit, its characterized in that: the upper portion installation power unit of rubber shock absorber mechanism, hand support is connected with rubber shock absorber mechanism upper portion, the sub -unit connection fuselage shell of rubber shock absorber mechanism, the head capsule body is makeed firm by ramming in the connection of fuselage shell lower extreme, make the connection of head capsule body lower extreme firm by ramming and make the head cap firm by ramming, the driving shaftis connected to the flexible axle lower extreme, power unit is connected to the flexible axle upper end, driven shaft and driving shaft parallel arrangement, the driven shaft passes through the gear train and is connected with the driving shaft, the eccentric body has two, two eccentric bodies are installed respectively on driving shaft and driven shaft, the eccentric body is gone up to open and is led the oilhole, it is 5~10 with eccentric axis contained angle of personally experiencing sth. Part of the body to lead the oilhole. Portable tamping tool excitation strength is big, when making firm by ramming the railway ballast, alone just can operate, and is efficient, enables the railway ballast and arrange tightly in fact, extension maintenance cycle.