Terry has been linked with a mega-money move to Manchester City.
“John Terry is a symbol of this team,” said Ancelotti.
“He will be captain next season. He said he wants to stay forever and we want to keep him forever.
“Now there is a question of Man City, but for Terry (there is) no price.
“Terry will be at Chelsea forever.
“He said he wants to stay, there is no problem for him with us, the story continues – Chelsea and Terry.
“I like to have a captain like Terry, he is very close to (Paulo) Maldini for professionalism, for quality and he will be the best captain for Chelsea.
“I spoke with Terry a month ago when I came to the club and he said welcome. And after he went on holiday.
“I will speak with him because he is the captain and I want a good relationship with the captain.”