Support for the Cabinet of Prime Minister Shinzo Abe has edged down to 68.0 percent in the latest poll from 70.9 percent last month, a Kyodo News survey showed Sunday.
In a telephone survey conducted on Saturday and Sunday, 65.0 percent of respondents said they expect positive effects from "Abenomics," and the economic policies pursued by Abe to turn around Japan's deflation-battered economy, against 29 percent who replied they are not expecting much.
The latest nationwide survey covered 1,440 eligible voters, of whom 1,010 responded.
On Abe's controversial proposal to revise Article 96 of the Constitution to make constitutional amendments easier, 51.6 percent opposed the proposal while 37.2 percent expressed support.
Also 65.6 percent said they do not have expectations for the Japan Restoration Party in the upcoming House of Councillors' election or in the future, while 27.3 percent voiced expectations for the party.
The party is co-led by Osaka Mayor Toru Hashimoto, who was criticized harshly at home and abroad over his controversial remarks about wartime sex slavery.
Hashimoto said in early May that the system of military brothels using comfort women, as they are euphemistically known in Japan, was "necessary" to maintain discipline in the Japanese military before and during World War II.