Twice.

There are no restrictions on participating in the project, but there will be restrictions on application, so as long as there is a mentor willing to take care of you (there is only one mentor at most), you can participate in as many projects as you want.

Since the establishment of the National Social Science Fund, with the great attention of the Party Central Committee and the strong support of relevant parties, the total amount of the fund has continued to increase, the coverage and influence have continued to expand, and the subject settings and project settings have continued to expand. , the project management system has been increasingly improved, a large number of in-depth and weighty research results have been launched, and a large number of subject leaders with solid foundation and enterprising spirit have been cultivated.