Judging from the professional requirements, the national civil servant mathematics major can be reported according to the following categories:

1, regardless of major;

2. Science and engineering;

3. National tax or local tax, statistics bureau, customs, etc.

The civil service examination is a recruitment examination organized by the competent civil service department for non-leadership positions below the chief clerk and other equivalent positions.

According to the Civil Servant Law of People's Republic of China (PRC), civil servants who hold non-leadership positions and other equivalent positions below the chief clerk shall be employed by means of public examination, strict inspection, equal competition and merit-based admission. When recruiting civil servants in ethnic autonomous areas in accordance with the provisions of the preceding paragraph, appropriate care should be given to ethnic minority applicants in accordance with the law and relevant regulations. The recruitment of civil servants of the central organs and their directly affiliated institutions shall be organized and implemented by the competent department of civil servants of the central state. The recruitment of civil servants in local organs at all levels shall be organized by the provincial civil servant department, and when necessary, the provincial civil servant department may authorize the municipal civil servant department to organize.