The invention discloses an enhancing agent for consolidating tailing of iron core, which is composed of 7-12% of sodium methylsilanolate, 8-13% of acetonformaldehyde condensate sulfonate (USZ), 10-25% of NaSO4, 1-5% of succinate sodium, 5-15% of sodium aluminate and 50% of water. The product has no harm to human body, livestock and plants. The soil solidified intensifier has high initial strength, good cracking resistance and freeze resistance, the seven-day unconfined compression strength is larger than or equal to 3.0Mpa, the anti-bending tensile strength is 0.50-0.62Mpa, the modulus of resilience is 1,300-1,700Mpa, and the water stability is 90-95%. The intensifier has less usage and large supply diameter, facilitates construction and can reduce construction cost.