Prime Minister Shinzo Abe's Liberal Democratic Party has the highest support rate ahead of the Upper House election in July, far eclipsing that of the nearest opposition party, a Kyodo News survey showed Thursday.

In a two-day telephone poll conducted from Wednesday, 28.8 percent said they would vote for the LDP when casting their ballots under proportional representation. The ruling party was followed by the Constitutional Democratic Party of Japan with 9.0 percent.

Komeito, which forms the ruling bloc with the LDP, garnered 5.6 percent, while the Japanese Communist Party had 3.4 percent followed by Nippon Ishin no Kai at 3.2 percent, the Democratic Party for the People at 1.6 percent and the Social Democratic Party at 1.2 percent.