Currently (as of September 2021), there is no default Alibaba Puhui font in Jianying software. However, you can try the following steps to use Alibaba Puhui font in Jianying:

1. Download font file: First, you need to download the font file of Alibaba Puhui font (usually in .ttf or .otf format), which can be obtained on the Alibaba Puhui font official website or other resource websites.

2. Install font file: Save the downloaded font file to your phone or computer. For mobile phone users, you can copy the font file to the font directory of the phone and then install the font in the phone's settings. For computer users, you can double-click the font file and select Install.

3. Use fonts in Jianying: Open the Jianying app and select the clip you want to add text to in the video editing interface. Then, select Font Settings in the text editor and browse the list of available fonts.

4. Find Alibaba Puhui font in the font list and select it as your text font.

Please note that the font selection of Jianying may be limited by your device and operating system. If you cannot find or use a specific font in Jianying, it may be because the font is not in the list of supported fonts.

Also, the functions and interface of Jianying may change with the update of the software version, so please make sure you are using the latest version of Jianying and find and try different font options in the software.