The ISEE/PSTEP international workshop on “The Solar Cycle 25 Prediction Workshop in Nagoya” was held at ISEE, Nagoya University from 27 November to 2 December 2017. In the workshop, a total of 12 international researchers participated and discussed their studies related to the solar cycle 25 prediction. The aim of our workshop is trying to compare several Solar Cycle 25 prediction results and discussing why the result is different among each other. This time, we focused on the prediction by the polar magnetic field strength at the solar minimum. We expect that our comparison study can contribute to the next generation prediction models for the solar cycle.