The performance of CODE′s new solar radiation pressure model, the EECOM (extended empirical CODE orbit model), was analyzed on precise orbit determination for mixed-type BeiDou constellation. This study is based on the NUDTTK software, which is a satellite orbit determination toolkit. The validation of satellite laser ranging reveals that the EECOM can improve orbital accuracy of geostationary earth orbit satellites by 17.4% and 35.1%, compared with traditional CODE′s ECOM-9 and ECOM-5 models, respectively. As to the inclined geosynchronous earth orbit and the medium earth orbit satellites, the ECOM-5 model performs better than EECOM as well as ECOM-9 model. It means that CODE′s new solar radiation pressure model is not able to improve the orbital accuracy of the inclined geosynchronous earth orbit and the medium earth orbit satellites. External orbit validation by IGS data analysis centers of GFZ, WHU and CODE indicates that the accuracy of our current BeiDou precision orbit is 1~4 m for geostationary earth orbit satellites, 25~30 cm for inclined geosynchronous earth orbit satellites and 10~20 cm for medium earth orbit satellites, respectively.