The Qatari in charge of the French capital side confirmed that the squad needs some fine tuning, but insisted that he will also invest in the club's infrastructure
The French club have set their sights on the Champions League after finishing second in Ligue 1, three points adrift of champions Montpellier.
Al-Khelaifi stated that some changes are necessary for the team to be able to compete in Europe, but labelled the reports suggesting that coach Carlo Ancelotti has a €100 million transfer kitty as fanciful.
"We will discuss the structure of the team," he told RMC. "We want three or four reinforcements.
"We will play in the Champions League and in order to do well, everyone in the squad needs to be at the same level.
"€100m for new signings? That is just a rumour. I have never said anything about that figure."
Al-Khelaifi then added that the money PSG's Qatari owners will invest in the club will not be channeled solely into bolstering the squad.
"Our objective is not only to buy players," he explained. "We have money to spend, but in the medium run, let's say, in the next four or five years, we want to be able to have players who come from our youth ranks.
"We are building PSG's foundations. We will also invest in the training centre or the stadium."
The Qatari also refused to say whether the club are interested in Real Madrid duo Gonzalo Higuain and Kaka.
"The golden rule is to negotiate in confidentiality. Until we have signed a player, nothing will be announced."