For the first time since centre-right party GERB took office in 2009, disapproval of its performance reached 45%, a public opinion survey conducted by local Alpha Research showed.
GERB supporters shrank to 18% in September, Alpha Research said on Tuesday, quoting the poll's findings.
Public disapproval of prime minister Boiko Borisov in September stood at 37% versus 32% approval, as all cabinet ministers except regional development minister Lilyana Pavlova saw their approval ratings decline.
Over 70% of the poll respondents said they were are dissatisfied with the government's economic, social, health and income policies.