Using medium-temperature coal pitch particles with a softening point of 85 ℃ and a particle size of 0.30～0.45 mm as raw materials, pitch balls were prepared by the suspension method and stabilized by the mixed oxidation method（HNO3 oxidation and O2 oxidation). Pitch-based Spherical Activated Carbon is prepared from non-melting pitch balls through carbonization and CO2 activation. The pitch balls were characterized by SEM, TG/DTG, and FT-IR. The results show that the pitch balls prepared by the suspension method have a smooth surface, an average sphericity of 0.981, and a concentrated particle size distribution. The weight of the pitch ball of 0.30～0.45 mm accounts for more than 93%. After the activation temperature of 940 ℃ and 6 h of heat preservation, the BET specific surface area of Pitch-based Spherical Activated Carbon is 1 545.20 m2/g and the microporosity is 75.30%.