JERUSALEM (AP) _ About 1,000 demonstrators on Tuesday called on President Reagan and Soviet leader Mikhail S. Gorbachev to discuss the plight of Soviet Jews during their Geneva summit meeting.

''Gorbachev, Free Our People,'' read one of the banners carried by the protesters, who gathered at the western wall of the Jewish Temple destroyed in the 1st century, one of Judaism's holiest sites.

One demonstrator stood in a wooden cage to symbolize the plight of Soviet Jews.

The demonstration was one of several conducted this week to call attention to the cause of Soviet Jews who have been denied visas to emigrate.

About 900 Jews have been allowed to leave the Soviet Union this year. Israeli officials say that about 400,000 Soviet Jews, many with friends and relatives in the 165,000-member Soviet community here, are seeking permission to immigrate to Israel.