Xiamen University is a well-known high-level comprehensive university in China with a strong doctoral education. To apply for a Ph.D. in Xiamen University, you need to meet certain conditions and requirements. Generally speaking, the applicant should meet the following conditions:

1. Bachelor's degree and master's degree: Master's degree or equivalent is required to apply for doctoral degree.

2. Academic ability: Applicants need to have strong academic research ability and have a certain depth and breadth in their own research direction.

3. Scientific research achievements: scientific research achievements with certain quantity and quality, such as publishing papers or participating in scientific research projects.

4. Letter of recommendation: 2-3 letters of recommendation from professors or experts with doctoral degrees are required to prove the applicant's academic level and research potential.

5. Interview: Some majors need an interview to understand the applicant's research background, interests and motives.

To sum up, if you have the above conditions and can fully demonstrate your academic ability and research potential in the application materials, it is a good choice to apply for a doctorate from Xiamen University. Please note that the application requirements of different majors may be slightly different. For specific application requirements and procedures, please refer to the official website of the corresponding college or major of Xiamen University.