Abstract: The radioactivity migration behaviors for design basis accident and severe accident of advanced pressurized water reactor were studied, and the dose calculation models of the emergency operation facility (EOF) for various irradiation paths were determined, including inhalation internal irradiation, gamma external irradiation from contaminated air in EOF and gamma external irradiation through the iron door or shielding wall from contaminated air outside EOF. On this basis, a visual calculation program called as VYJcode was designed using the MFC tool of VC++ 6.0, which would be used to calculate the EOF personnel dose. This program can provide technical support for the EOF habitability design of passive nuclear power plant. The efficiency and accuracy of this program were proved by a series of contrast verification.