Prime Minister Shinzo Abe’s Cabinet lost popularity in May, with 70.9 percent of the respondents supporting it compared with 72.1 percent in the previous poll last month.
The Cabinet’s public support topped 70 percent for the fourth time in the last months since Abe’s Liberal Democratic Party came to power in December.
The survey was conducted on Saturday and Sunday with 1,022 people giving answers via telephone, according to Kyodo news agency.
Asked which party they will vote for in the proportional representation section of the upper house election this summer, 5.7 percent of the respondents said they would support the Japan Restoration Party, down 2.8 points, compared with 6.8 percent who will vote for the opposition Democratic Party of Japan, up 1.0 point.
Abe’s Liberal Democratic Party secured the highest support rating at 44.4 percent, up 1.9 points, according to the survey.
The Japan Restoration Party dropped on the third place after its co-leader and Osaka mayor Toru Hashimoto made controversial remarks about the so-called “comfort women” that outraged the local and international community.
Regarding the restart of idled nuclear reactors, 54.3 percent opposed, while 37.2 supported the idea.
On the controversial proposal to revise Article 96 of the Constitution to ease the criteria for constitutional amendments, 48.6 percent opposed the proposal while 41.5 percent expressed support.