I want to apply multiple visa my daughter studying Hong Kong

If you are a Saudi Arabia passport holder, you can enjoy free entry to HK for a stay of not more than 30 days after each entry. No need to apply for a visa for HK.

No I am Sri Lankan passport holder,This August 2018 my daughter will join Hong Kong university time to time my self and my wife need to visit to see my daughter that is the reason we need multiple visit visa,I am working Saudi Arabia my wife working in Sri Lanka.Two parents are two countries we have multiple visit entry permit very easy for us. please advice

If trying to apply for HK visa, the first step is to prepare all the required documents including passport and its copy, a completed application form attached with a passport-style photo, invitation letter from your daughter, photocopy of ID of the inviting individual, travel itinerary, round air tickets, the latest 3-month bank statement. Next step is to submit the application to the embassy of China.