A rubber for a textile roller, characterized in that, comprises NBR as a main material, added with conductive powder and conductive bands, via a pre-mixing process flow, said conductive powder, said conductive bands form a net-node structure in said NBR, wherein said net-node structure comprises a conductive net and conductive nodes, said conductive bands form said conductive net, said conductive powder forms said conductive nodes; wherein the rubber for a textile roller is prepared according to a method comprising the steps: S100, plasticating: weigh NBR, and plasticate for twice, with each for 30-40 min, control plastication temperature at 35-50 °C; after the first plastication, sit for 3-4 hours before proceeding to the second plastication; after the second plastication, sit for 10-15 hours, and obtain plasticated material; S200, pre-mixing: add conductive bands into a small amount of liquid NBR in proportion, pre-mix, and obtain pre-mixed material; S300, mixing: add plasticizer into the plasticated material to mix; during mixing, successively add conductive powder and the pre-mixed material in proportion; afterwards, add anti-aging agent and zinc oxide and mix well; lastly, add vulcanizing agent and mix for 3-4 min before unloading; control mixing temperature at 35-40 °C; and S400, vulcanizing: vulcanizing temperature is 150-160 °C, and vulcanizing time is 15-40 min; wherein the rubber for a textile roller comprises compositions with following mass ratio: NBR 100, conductive powder 10-40, conductive bands 0.5-8, plasticizer 6-15, anti-aging agent 1-2, vulcanizing agent 2.5-4.5, and zinc oxide 3-5; and wherein NBR is carboxylated nitrile rubber; said conductive powder is conductive carbon black or metal powder, having a conductivity of less than 10 Ω • cm and a particle size of less than 200 μm; said conductive bands are carbon nanotubes or nano silver wires, having an outer diameter of 10-20 nm and a length of 5-15 μm. wherein said net-node structure comprises a conductive net and conductive nodes, said conductive bands form said conductive net, said conductive powder forms said conductive nodes; wherein the rubber for a textile roller is prepared according to a method comprising the steps: S100, plasticating: weigh NBR, and plasticate for twice, with each for 30-40 min, control plastication temperature at 35-50 °C; after the first plastication, sit for 3-4 hours before proceeding to the second plastication; after the second plastication, sit for 10-15 hours, and obtain plasticated material; S200, pre-mixing: add conductive bands into a small amount of liquid NBR in proportion, pre-mix, and obtain pre-mixed material; S300, mixing: add plasticizer into the plasticated material to mix; during mixing, successively add conductive powder and the pre-mixed material in proportion; afterwards, add anti-aging agent and zinc oxide and mix well; lastly, add vulcanizing agent and mix for 3-4 min before unloading; control mixing temperature at 35-40 °C; and S400, vulcanizing: vulcanizing temperature is 150-160 °C, and vulcanizing time is 15-40 min; S100, plasticating: weigh NBR, and plasticate for twice, with each for 30-40 min, control plastication temperature at 35-50 °C; after the first plastication, sit for 3-4 hours before proceeding to the second plastication; after the second plastication, sit for 10-15 hours, and obtain plasticated material; S200, pre-mixing: add conductive bands into a small amount of liquid NBR in proportion, pre-mix, and obtain pre-mixed material; S300, mixing: add plasticizer into the plasticated material to mix; during mixing, successively add conductive powder and the pre-mixed material in proportion; afterwards, add anti-aging agent and zinc oxide and mix well; lastly, add vulcanizing agent and mix for 3-4 min before unloading; control mixing temperature at 35-40 °C; and S400, vulcanizing: vulcanizing temperature is 150-160 °C, and vulcanizing time is 15-40 min; wherein the rubber for a textile roller comprises compositions with following mass ratio: NBR 100, conductive powder 10-40, conductive bands 0.5-8, plasticizer 6-15, anti-aging agent 1-2, vulcanizing agent 2.5-4.5, and zinc oxide 3-5; and wherein NBR is carboxylated nitrile rubber; said conductive powder is conductive carbon black or metal powder, having a conductivity of less than 10 Ω • cm and a particle size of less than 200 μm; said conductive bands are carbon nanotubes or nano silver wires, having an outer diameter of 10-20 nm and a length of 5-15 μm.