Before hiking in any of Taiwan's National Parks, hikers need to apply for a permit online. Hikers can also book bed and camping spots if needed.
As a reminder....
Here is the link for the police permits which you get after getting a National Park permit. It is a bit annoying as these two permits have nothing to do with each other. The police permit is a given and is never denied. You can get one on the website beforehand, or at the police station near the trailhead before your hike.
When hiking Jade Mountain, the police station is at the trailhead so just show up with your park permit and ID and fill out some forms.
EIT has a very comprehensive step by step to fill out a police permit online if you don't read Chinese.Click on the link below.
Below is the link for the Jade Mountain hiking permit. The website is in English and is easy to follow. Some things to note...
Below is the first page of the application process. Click "Paiyun Lodge Advance Application" to get started.