Method for manufacturing slope greening ecological building blocks by using building mud

The invention discloses a method for manufacturing slope greening ecological building blocks by using building mud. The building block comprises the building mud, a slow-release organic fertilizer, awater-retaining agent, water glass, stones, sand, synthetic fibers and ecological bags with grass seeds. The building block is prepared from, by weight, 50%-70% of the building mud, 2%-5% of the slow-release organic fertilizer, 5%-10% of the water-retaining agent, 3%-6% of the water glass, 5%-10% of the stones, 10%-15% of the sand and the balance of the synthetic fibers, and the sum of the weightpercentages of all the components is 100%. The method comprises the following steps: (1) uniformly mixing and stirring the building mud, the slow-release organic fertilizer, the water-retaining agent,the water glass, the stones, the sand and the synthetic fibers; (2) putting the mixture into a mold, and pre-pressing for 5-15 seconds under the pressure of 1-2 MPa; (3) demolding a pre-pressed building block, and maintaining