1. First open the browser, enter the technical secondary school diploma and query official website to search, as shown in the figure below, and then enter the next step.

2. Secondly, select the first item on the search page, click Enter, as shown in the figure below, and then enter the next step.

3. Then enter and find the red box in the middle of the webpage, then click Query, as shown in the figure below, and then go to the next step.

4. Then enter the home page and you will see a window, as shown in the figure below, and then enter the next step.

5. Finally, enter the corresponding number and verification code, and click Query to find the relevant certificate, as shown in the figure below.