The state's official gazette said Monday that the battalion will be composed of about 500 specially trained officers recruited from police units statewide. Details of the announcement were carried Tuesday by the G1 Internet news portal.
Rio's Maracana stadium will host seven World Cup games including the July 13 final.
Last June, violent protests erupted around Brazil against bus fare hikes, corruption, poor public services and the billions of dollars being spent on the World Cup and 2016 Rio de Janeiro Olympics. At least six people died in connection with the protests, and Rio saw some of the most violent ones.
Brazil announced last week that 10,000 members of an elite federal security force will help better control the demonstrations expected around the country during the World Cup.
FIFA President Sepp Blatter has criticized Brazil's slow preparations for the World Cup, calling the country further behind than any other hosting the international event during his tenure. He has said he believes there will be more of the kind of protests that marred last year's Confederations Cup, but is hopeful they won't impact the World Cup.
Jerome Valcke, the top FIFA official in charge of the World Cup, has said that the football tournament would have "the highest level of security you can imagine" to contain any violence.