hello, venerable i would like visit Hong Kong during my summer vocation. I am a student in Korea.

You can apply for a tourist entry permit to visit there.
Firstly, prepare the relevant documents: copy of your passport, the application form, a passport-style photo, hotel reservation, proof of your financial support, flight itinerary and travel plan as well as your residence permit in Korea.
Secondly, submit the application to the embassy of PRC to apply for it.