The invention discloses a slide plate brick for special steel and a production method thereof. The slide plate brick comprises the following components in parts by weight: 60-75 parts of high-purity fused magnesite, 10-20 parts of fused magnesia-alumina spinel, 5-10 parts of aluminum nitride, 5-7 parts of magnesium aluminum alloy micropowder, 1-3 parts of ultrafine graphite, 1-3 parts of antioxidant, and 3-5 parts of binding agent. The slide plate brick is low in carbon content, long in life and high in safety, reduces the occurrence probability of steel permeation and steel leakage accidents, solves such comprehensive defects as easy oxidation, no erosion resistance, no scour resistance and easy generation of low-melt inclusions in production of the special steel, and meanwhile, can meet the production requirements of plain steel.