There are many ways to set the background wall image for Douyin live broadcast. Two common methods are provided below: 1. Set directly through the Douyin application: Open the Douyin application and log in to the account.

Enter the live broadcast room page, click the "+" icon in the lower right corner, and select "Photos".

Select and upload the picture you want to use as the background image in your phone's photo album.

After the image is uploaded, click on the image and select "Set as Live Room Background".

Adjust the image's position and size to ensure it fits the background of the live broadcast room.

After confirming the settings, exit the settings page and you can see the image you just uploaded as the background image in the live broadcast room.

2. Use the green screen assistant software to set up: prepare a green screen with a pure color, flat and wrinkle-free, and set up a live broadcast room.

Download and install green screen assistant software, such as Kaying’s free green screen live broadcast software.

In the green screen assistant software, import the prepared background image or video in advance.

Adjust the camera's shooting angle and the distance between the person and the background to ensure a clean and natural keying effect.

Start the live broadcast, and the green screen assistant software will automatically switch the background.

During the live broadcast, parameters such as background and lighting can be adjusted at any time as needed to achieve the best live broadcast effect.