I am a graduated of Finance and Accounting at UK.  Please advise if I want to apply HKCPA, how many paper is needed to arrange.?

You will need to complete the entire QP. In other word, no exemption.

If you want an easier pathway, you will have to check with ICAEW.

If you write this English at this level and said you're a graduate from UK, no paper will help you to qualify for HKCPA!

Sorry, I'm not an accounting profession, just cannot bear to see the quality of  English of students of/from HK.