"There cannot be any concessions on the matter of human rights or the criteria for visa liberalisation," Hollande told reporters ahead of the resumption next week of tough negotiations between Turkey and the EU in Brussels.
Under a controversial draft agreement reached this week, Turkey would take back all migrants landing illegally in Greece in a bid to reduce their incentive to pay people smugglers for dangerous boat crossings to the Greek islands.
The question of human rights in Turkey and visa liberalisation should be "a factor for clarification and transparency in the relations between Turkey and Europe," Hollande said.
Earlier this week, the French leader said visa liberalisation for Turkish nationals, slated to go into effect in June, would only take place if Ankara met 72 conditions.
Describing Turkey's willingness to readmit refugees and migrants who left illegally for Greece as "very important", he said there could be visa liberalisation but only according to the "roadmap" that had already been outlined.
"If the criteria are not met, the June date will not be met either," he said.
Turkey is also demanding six billion USD 6.6 billion in aid, visa-free access for its nationals within Europe's passport-free Schengen zone and for swifter action to process its bid to join the EU.
The plan to expel migrants en masse from Greece has sparked international criticism, with the UN's top officials on refugees and human rights questioning whether it would be legal.
Hollande spoke after meeting in Paris today with more than a dozen social democrat leaders from the EU, including Italian Prime Minister Matteo Renzi and German Vice-Chancellor Sigmar Gabriel.
