First, click on the site of Japanese localization plugins such as Pleiades-Eclipse, IntelliJ.
Click to go to this screen. Click on the latest Eclipse 2020.
Then click Mac 64bit, full Edition.
When the download is completed, the file pleiades-e4.4-java-64bit-jre_2020-03.zip will be created in the download folder.
Install You can install it by expanding pleiades-e4.4-java-64bit-jre_2020-03.zip.
A shortcut cannot be created, so create a shortcut of “Installed folder\pleiades\ecripse\ecripse.exe” on the desktop.