Chemical synthetic materials (such as resin) are used as the carbon source which is "carved" into spherical activated carbon with large specific area, low ash content, high strength and well-developed micropores by atmospheric rotary furnace through solidification, carbonization and activation. At present, a large-scale production capacity of 20 tons per year has been realized and the material generally has a specific area of more than 1,000 m2/g, a particle size ranging from 10 μm to 2 mm, and a pore structure of 0.6 nm to 20 nm and can be widely used in catalyst carrier, precious metal recovery, drug carrier, blood purification, health care products, medicine (for nephropathy) and other fields.