The research found that 67% of respondents think individuals attempting to cross the border illegally should be prevented from entering, and if they do enter, they should be returned to Belarus.
The survey, conducted by Ipsos for the Polish radio station TOK FM and the investigative website OKO.press, was published on Monday.
Only 19% agreed that migrants should be admitted and allowed to seek asylum, while 14% were uncertain or had no opinion.
The survey revealed that the majority of those opposing the entry of migrants are supporters of the far-right Confederation party (91%) and the right-leaning Law and Justice party (86%). Additionally, 61% of voters from the ruling centrist Civic Coalition (PO) were against allowing migrants into Poland.
Among the ruling coalition partners, opposition to letting migrants in was expressed by 60% of Third Way supporters and 39% of New Left supporters. Notably, the New Left was the only party where supporters of allowing migrants into the country (43%) outnumbered opponents.
The survey was conducted on a representative sample of 1,071 respondents using a mixed-method approach between June 4 and 6.
Last week, IBRiS conducted another survey on behalf of the Polish daily Rzeczpospolita, asking if Polish soldiers stationed on the eastern border should use weapons when migrants attempt to cross the border by force. A resounding 85.7% of respondents said yes, with 57.8% fully agreeing and 27.9% mildly agreeing.