United are set to face the team that defeated them in the 2009 final.
“I don’t think we should be going there lacking in confidence,” Ferguson said.
“We are playing a fantastic team but we can’t be frightened out of our skins. Their form is there for everyone to see. Our job is to find a solution.”
Ferguson has revealed that he is planning to speak to Real Madrid boss Jose Mourinho ahead of the clash with Barcelona.
“I speak to him [Mourinho] quite a lot,” added Ferguson. “I spoke to him last week.
“I think we will depend on our own knowledge of Barcelona. It’s not as if we haven’t seen them before. We’ve watched them many times this season.
“But the experience Real Madrid have from Jose’s angle, you always take information from him like that because he is very helpful in that way.”