The invention discloses an anti-bleeding polymer, a low-retraction filling solid waste material, a preparation method and an application. The anti-bleeding polymer is at least prepared from the following components: acrylic acid, acrylamide, an initiator, a cross-linking agent, deionized water, sodium hydroxide and a surface cross-linking agent. The low-retraction filling solid waste material is prepared from the following components in parts by weight: 500-1000 parts of fly ash, 500-1000 parts of blast furnace slag, 30-300 parts of water glass, 0-500 parts of Portland cement, 300-1200 parts of water, 10-1000 parts of sodium hydroxide and 2-20 parts of an anti-bleeding polymer. Aiming at the volume retraction phenomenon of a common solid waste cementing material caused by the bleeding problem in the hydration reaction process, the invention provides an anti-bleeding polymer, so that the retraction of the solid waste grouting material caused by bleeding is effectively reduced, and the roof contact rate of the solid waste grouting material to coal mine filling is improved; the anti-bleeding polymer can guarantee the humidity environment of the solid waste cementing material in the hydration process by slowly releasing water, the generation amount of C-SH is increased, and therefore the strength of a solidified body is improved.