The Mio Science Center in the Center for Heliospheric Science (CHS) is operated by Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA) and Institute for Space-Earth Environmental Research (ISEE), Nagoya University as a Joint Research Center for Space Science. The science center archives data related to the Mio project, releases the data to the public, develops integrated analysis tools for the data, and promotes studies related to the Mio project. Moreover, the science center contributes to plan joint observations between Mio and other satellites/ground-based observations.