ADSE (Advanced DSE) was developed by improving DSE (Dynamics calculation code system for Sub-critical system with External neutron source) for studying the dynamics of ADS (Accelerator Driven System). For the neutronics calculation module, the transport codes were introduced instead of the diffusion one to consider the angular distributions of neutron flux. The recalculation function of the adjoint flux was also introduced and the database of external neutron source was improved for three-dimensional system. In addition, the numbers of the geometrical mesh and the energy-group were extended. The thermal-hydraulics calculation module introduced the databases of the temperature correlations for the thermal properties of fuels, claddings and coolant based on latest studies. For the neutronics calculation module, the calculations by ADSE were compared with the experimental results at KUCA (Kyoto University Critical Assembly) and TRACY (TRAnsient experiment Critical facilitY). In the thermal-hydraulics calculation module, the calculations by ADSE and SIMMER-III were compared. As the result, the calculations by ADSE agreed with the every comparison data. ADSE has been developed appropriately and it is useful for the study of the ADS dynamics.