Ceramic proppant is the key material for fracturing of oil and natural gas wells with low permeability. When used in the deep well fracturing, ceramic proppant is filled in the rock cracks and treated with high-closing fracturing, so that it can support the cracks not closed and maintain high conductivity of oil and gas after release of the stress. It can not only increase oil and gas production capacity, but extend the service life of oil and gas wells.