1. First of all, you need to register for emergency triage training courses in qualified hospitals or training institutions, which usually include theoretical and practical teaching.

2. Then, master the basic knowledge and skills of emergency triage through the study and practical operation of the training course.

3. Then, after completing the training course, you need to take the emergency triage training exam, which usually includes two parts: theory and practice.

4. Finally, you can get the emergency triage training certificate by passing the exam, which is generally valid for two years, and you need to retrain the exam at the expiration.