1. First, open the login page of Taobao, enter the account number and password, and log in to Taobao website.

2. Enter the website, find your account name in the upper left corner of the website, and click the account name.

3. Then your account information will appear. Find account management and click account management.

4. After clicking, the account management settings page will appear, and you will see various options related to the account. Find personal information and click to select personal information.

5. After selecting, you will enter the profile setting page, where you can find the current avatar. When you move the mouse to the avatar, "Edit Avatar" will appear, and click "Edit Image".

6. After entering the avatar editing page, select "Local Upload" or "Photo Upload" to upload your own picture, and click "Save" to modify the avatar.

7. In addition, enter personal data such as name, gender and date of birth in the personal data page in step 5, and click Save to modify the personal data.