Depends on what type of meeting it is. If it's for business I"m sure some of the turkish companies in SHanghai meet up somewhere. If you just want to find some unknown strangers to meet up with you would probably need to place an ad to try to get some turkish people to go meet in one place. What would the meeting be for? You could create some kind of club and have it exclusively for turkish people like a chess club etc., 

Hi, thanks for answer, just to know more Turkish people, meeting in a cafe or restaurant kind of meeting. I heard that more than 2000 Turkish living in Shanghai permanently but in one year ony two times bump into Turkish people Thats why i asked this question...