what kind of papers should i need to marry a taiwan national guy?

Generally, you need to prepare the following papers:
1. your birth certificates
2. certificate of single status
3. health certificate
4. your valid Filipino passport
5. photo of you
If you plan to register your marriage in your local marriage registration office in Philippines, just contact the office to know about the relevant info. in advance; If to register it in Taiwan, ask your taiwan pastner's relatives in Taiwan to make an enquiry at the corresponding government office first as well.

To marry a foreign may need a more complicated procedure, and the rules are different in different places. You'd better get the truth from the corresponding official offices first.