1. Academic preparation: Johns Hopkins University is a world-class research university with high academic requirements. Before applying, make sure that your academic performance is excellent, especially in related subjects. If your grades are not satisfactory, you can improve your competitiveness by taking extra academic courses or exams.

2. Research interests and objectives: Johns Hopkins University is famous for its outstanding research projects. In the application process, you need to clearly express your interests and goals in a certain research field. This includes choosing a major and tutor that suits your interests and showing that you have certain research experience or achievements in this field.

3. Letter of recommendation: Letter of recommendation is a very important part of the application process. Make sure that your references can provide specific, detailed and positive comments to prove that you have the ability to study and research at Johns Hopkins University. At the same time, communicate with referees in advance to ensure that they have enough time to write letters of recommendation.

4. Personal statement: Personal statement is your opportunity to show yourself to the Admissions Committee. In your personal statement, you can introduce your background, achievements, goals and motives. Make sure your personal statement is clear, logical, true and attractive to attract the attention of the admissions Committee.

5. Interview: If your application is considered for interview, you need to be prepared to answer various questions. Interview is an opportunity to show your academic ability, research interests and personal qualities. Prepare some common interview questions in advance and figure out how to answer them.