You can follow the following steps when applying for trademark registration online: Step 1: Prepare materials. Step 2: Log in to the trademark online service system. Step 3: Complete user registration. Step 4: Upload supporting documents and trademark drawings. Step 5: Pay online. Step 6: Submit your application. Step 7: Wait for review.

Through the above steps, you can successfully complete the application process for online trademark registration. If you encounter problems during the application process, you can contact the official customer service or consultation window of the Trademark Office of the State Intellectual Property Administration of China for help.