Ceramsite has excellent properties, such as low density, high cylinder compressive strength, high porosity, high softening coefficient, good frost resistance, and excellent alkali-resistant aggregate reactivity. Especially due to the low density of the ceramsite, the internal porous, uniform shape and composition, and certain strength and sturdiness, it has the multifunctional characteristics of light weight, corrosion resistance, frost resistance, earthquake resistance and good insulation. Using these excellent properties of ceramsite, it can be widely used in building materials, gardening, food and beverage, refractory insulation materials, chemical industry, petroleum and other sectors.