The posters, signed by Koraput Yubak Jagaran Samiti, have appeared in the Maoist belts of Sunki, Pottangi, Ampabali, Padwa, Lamataput, a police official said.
The development comes days after the rebels made an appeal to the public to cooperate with them during their celebration week.
Charging the Maoists as agents of anti-development, the posters warned the left-wing ultras against killing people by falsely accusing them of being police informers.
"Don't be an obstacle to works of development in the tribal-dominated districts, including Koraput," a poster read.
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The anti-Maoist posters are a clear indication that people here are fed up with anti-development activities, said Koraput Superintendent of Police Kanwar Vishal Singh.
"People have realized that the Maoists do no good to the society. They simply make false promises of development, extort money and kill innocent people," Singh said.
They understand that Maoists have been trying to create an atmosphere of terror by unleashing violence and killing innocent locals, the SP said, adding that an inquiry has been launched to ascertain the identity of the people carrying out this anti-Maoist poster drive.