According to the relevant regulations of the National Social Science Fund, the problem-solving process usually takes about one year. Once the person in charge of the project receives the modification opinions of the appraisal experts, they need to make modifications according to these opinions and conduct a second appraisal. The person in charge of the project shall complete the revision within one year and submit the revised materials to the National Social Science Planning Office. The National Social Science Planning Office will contact experts for final appraisal. As for the specific time for revising the review, the National Social Science Fund has no clear stipulation, but it is generally completed within half a year. The whole closing process usually takes about a year. The specific time will change due to the complexity of the project, the quantity and quality of appraisal opinions and other factors. The person in charge of the project should pay close attention to the notice and requirements of the fund, complete the relevant revision and submission work on time, and ensure the smooth completion of the project.