The utility model discloses a self-compaction concrete fills support, which comprises a bracket, the below of support is equipped with the walking wheel, and the top is equipped with the operation platform that can place the hopper, piece and last spout are rotated to last being equipped with of operation platform, rotate a connection go up the spout and make go up the spout around being located it rotates to go up an axle center at spout middle part, the left and right sides of support all is equipped with a lower spout and a cantilever pole, two the inner of spout lies in respectively down go up the below at spout both ends, the outer end respectively to stretch out the both sides of support, two the one end of cantilever pole is all connected on the support, the other end stretches to the homonymy respectively the top of lower spout. The utility model discloses a self-compaction concrete fills support is particularly useful for realizing that two lateral irrigations of the board-like ballastless track self-compaction concrete of CRTSIII annotate, have processing simple, remove nimble, improve the construction work efficiency, increase advantages such as self-compaction concrete's compactibility.