The invention relates to the field of waterproof materials, and particularly provides a waterproof air-permeable material, and a preparation method and application thereof. The waterproof air-permeable material comprises a hydrophobic adhesive and aggregate coated with a hydrophobic material. The aggregate comprises the following raw materials in parts by weight: 30-60 parts of quartz sand, 20-50 parts of haydite and 10-30 parts of slag. The particle size of the quartz sand is 0.05-0.1mm, the particle size of the haydite is 0.07-0.15mm, and the particle size of the slag is 0.2-0.4mm. The waterproof air-permeable material has favorable waterproof effect and excellent air permeability.