The utility model discloses a floor rammer, including organism, excitation board, guide post, compression roller and protection casing, the left end of organism is equipped with the end cover, install the motor in the end cover, the bottom equipartition of organism is equipped with four group's universal wheel subassemblies, the bottom lower extreme of end cover is equipped with a flexible baffle, organism inside is equipped with the pivot, the left end and the motor of pivot are connected, the pivot is passed through bearing assembly and is fixed on the lateral wall of organism, the interval is equipped with two sets of cam packs in the pivot, the guide post is equipped with two, two guide posts are located the left side and the right side of organism respectively, the guide post passes the lower part of organism, and the welding of the bottom of guide post has the excitation board, be equipped with down the pressure spring between guide post and the organism. The utility model discloses the compression roller that sets up can carry out the compaction to the ground that the excitation board was tamped once more to improve ground by compacted durable degree, two sets of flexible baffle of setting can play the protective action, can block the stone that splashes at the tamp in -process.