The invention provides elastic colloid for manufacturing glass cut-off machine work table facet, referring to the glass machinery field. The elastic colloid is made from the following raw materials with the mass part: 3 parts of dimethyl sulfoxide, 0.15 part of sodium carboxymethyl cellulose , 0.5 part of toluene, 8 parts of water, 0.6 part of glycerol and 0.5 part of titanium dioxide; A preparation method of the elastic colloid includes the steps of stirring and mixing the dimethyl sulfoxide, sodium carboxymethyl cellulose, toluene and water in the reactor according to the ratio; heating it at the temperature of 85oC for 2 hours, then reducing the temperature to 45oC for 0.5 hour and reducing it to the normal temperature to obtain Material A; stirring and mixing the glycerol and titanium dioxide in the reactor according to the ratio to obtain Material B; adding Material A and Material B in the reactor and increasing the temperature to 62oC, stirring them for 25mins and then reducing the temperature to 45oC so that the colloid can be used.The elastic colloid in the invention is high-and-low-temperature-resistant and anti-aging with great elastic resilience and strong adhesive ability. It can adhere firmly the flannelette composite material to the base plate of the glass cut-off machine work table facet.