I have Pakistani passport,i want to visit Hong Kong for 7 days.what processor for visit visa.

The processing time is around four to six weeks, so you are suggested to apply in advance.
The following documents are needed: an application form with a recent taken photo, your valid passport, your bank statement, your round trip ticket to HK & hotel booking. You can go to your local Chinese embassy to apply or apply by mailing your documents to HK Immigration directly.

Hello dear.i also visited to china three times.and i also get one fourth time to china,what i vist to hong kong at this type. please send me processing. Please tell me where i get form in my country. china embassy in pakistan,islamabad is near to me.and which embassy i applied to get form.uk or china for hk visit.i wait yours answers.thanks

No matter how many times you have been to, the processing time and the documents for application are the same.
The form can be found on the official website of HK Immigration Department.