Pillagers até spawnning outside for the pillagers outposts

Maybe that's a Pillager Patrol

I see no outposts so it's an illager patrol.

But when i kill thens(pilagers) hims continues spawnning, if was a illager patrol, after killed don´t will spawn again

@Ronaldo Ribeiro Soares patrols DO spawn continuously. Try the command /mobevent minecraft:pillager_patrols_event false and kill every pillager one more time. If they don't respawn, these were patrols. If they keep respawning, then it's indeed a bug.

Did you check with /locate pillageroutpost, because i play in old map and pillager outpost generate without any structure, but coordinate show to that place and pillager spawn again and again

Thank you for your report!
However, this issue is Working as Intended.

As others have noted, pillager patrols occur at random times and places. This is intended behavior.