Stabilizer for controlling heavy metal pollution of Carlin gold mine tailings

The invention relates to a stabilizer for controlling heavy metal pollution of Carlin gold mine tailings, which can effectively solve the problem of heavy metal pollution of the Carlin gold mine tailings. The stabilizer comprises a basic component A and a reinforcing component B, wherein the basic component A comprises the following components in percentage by mass: 30-50% of polyaluminum ferric chloride, 10-15% of polyferric sulfate, 10-50% of calcium hydroxide, 10-30% of calcium carbonate and 0.2-5% of ferric oxide according to the total mass of 100%; and the strengthening component B is sodium tripolyphosphate which is prepared into an aqueous solution for use. Uniformly mixing polyaluminum ferric chloride, polyferric sulfate deficiency, calcium hydroxide, calcium carbonate and ferric oxide, and activating to obtain the basic component A; the strengthening component B is prepared into an aqueous solution with the concentration of 0.1-1.5% for use. The curing agent is rich in raw materials, low in cost, eff