Turkey must address issues including the rile of law and human rights to make progress on EU membership possible, Mr Blok said during a visit to Ankara.
Mr Blok said Turkey faces economic challenges but offers enormous possibility for growth.
The Dutch Foreign Minister’s trip to Turkey came after the two countries decided in July to reinstate ambassadors who had been withdrawn earlier this year.
During the press conference Turkey Foreign Minister Mevlut Cavusoglu said Ankara wants to develop ties with the Netherlands.
He said: "We will look to focus on positive measures to improve our relations.”
The confirmation from Mr Blok comes days after President Erdogan’s crunch talks with German Chancellor Angela Merkel.
The leader of the EU’s economic powerhouse pledged “economic co-operation” with Ankara amid hopes to stabilise Turkey’s economy.
European officials have long said Turkey falls short of EU demands on basic rights and freedoms.