I present the strategy and activities of the public outreach and communication of ALMA in Japan. Since most of the public is not familiar with the radio astronomy, we present the human side of ALMA to attract the public interest, as well as by showing the science results. To evoke the public interest on the radio astronomy, it is also effective to show the radio astronomy research topics on the planets, the Sun, and bright stars so that they can connect the daily night sky with the radio universe explored by ALMA.