The invention discloses a saline soil area concrete foundation anti-corrosion protective layer material. The material contains the following components in mass percent: 20-40% of cement base material, 20-50% of fine aggregate, 3-25% of ash powder, 3-15% of swelling agent, 0.5-2.5% of water-reducing agent, and 5-16% of allocation water; the mass percent summation of the above components is 100%; and then the above components are sufficiently stirred and uniformly mixed to obtain the concrete foundation anti-corrosion protective layer material. The material is used for protecting the concrete foundation under the saline soil area, and has the features of being simple in construction, good in adaptability and low in construction cost.