1. Determine the course: First, you need to determine the course you want to apply for. You can check all the course information on the official website of Queen Mary College, including course content, admission requirements and so on.

2. Check the entrance requirements: Each course has its own specific entrance requirements, including academic performance and English level. You need to make sure that you meet these requirements.

3. Prepare application materials: You need to prepare a complete application material, including your personal information, education, transcripts, letters of recommendation, personal statements, etc. If your mother tongue is not English, you may also need to provide English proficiency test scores, such as IELTS or TOEFL.

4. Online application: After all the materials are prepared, you can apply online at the official website of Queen Mary College of London University. You need to fill in the application form, upload your application materials and pay the application fee.

5. Waiting for reply: After submitting the application, you need to wait for the school's reply. If your application is accepted, the school will send you an admission notice.

6. Accept the admission: If you decide to accept the admission of this school, you need to confirm the admission within the specified time, and complete the follow-up steps according to the instructions of the school, such as paying tuition fees and applying for a visa.

Generally speaking, to apply for Queen Mary College of University of London, you need to make full preparations to ensure that you meet all the admission requirements and apply according to the correct steps.