LePage made the comments on Wednesday during a visit at the Nexxlinx call center in Orono, Maine, according to the Bangor Daily News.
"They are going to our schools, and that's a real problem for me," LePage said. "If we can't build a fence high enough…we ought to go to China and see how they built a wall."
The audience laughed in response, according to the Daily News.
LePage is facing a tough re-election fight. The TPM Polltracker gives Democrat Mike Michaud a 3.5 point lead over the incumbent governor. Independent candidate Elliot Cutler is drawing 7.7 percent of the vote.