The dual-readout calorimeter simulation project is going on for the circular elec- tron positron collider experiment. Projective and 4π hermicity calorimeter geometry for circular electron positron collider experiment has been constructed in GEANT4 simulation. Each tower was calibrated with 20 GeV electrons. Performance at 0th (η=0.01111) and 45th (η=1.006195) tower was investigated for electron and pion from 10 GeV to 100 GeV. Electron response was linear within ±0.4% uncertainty. The electromagnetic energy resolution of C+S was better than that for C and S chan- nels. The stochastic term were 23, 13.9, and 14%, and constant term were 1.5, 0.5, and 0.1% for C, S, and C+S. Respectively, pion response corrected by dual-readout method was constant (0.92) within ±1% uncertainty. The hadronic resolution after dual-readout correction get better than that for C and S channels. The stochastic term was 79, 19.3, 26% and constant term was 9.9, 4.1, 0.7% for C, S, and the dual- readout correction. Respectively, this energy resolution is enough for calorimeter system of CEPC experiment.