Does anyone know why it still need to enter password?

Welcome to the Zoom Community, @HelenLee.

I’m sorry, but i don’t really understand what you’re asking, but I’ll try to help based in what I see. The Passcode is normally encoded in the Join Link so that recipients don’t have to manually enter the Passcode. 

But it looks to me like you don’t have the full URL of the Join Link. The encoded Passcode normally ends with “T09”, yours doesn’t, so maybe that’s why you’re being asked try enter it.