i have flight HKIA-kul on 13.20. i stay in shenzhen hotel. do i have enough time to airport ?

As I fail to find the hotel you mentioned, I’m wondering if you mean you stay in a hotel in the city and you need to go for a flight from HKIA at 13:20.

If in such case, you have enough time. I suggest you go to the Shekou port, where you can take the ferry to Sky pier in HKIA. The ferry schedule is dense, and the duration is about 30 mins. And you do not need to go through the immigration and check-in in the airport. Upon arrival, take your boarding pass and go directly to the boarding area.

yes.. i mean i stay a hotel in city.. if i use ferry fr the shekou port to hk airport, i dont need to go through the immigration when i go out to hk airport, sz immigration dont need check my visa? i heard from my friend that the immigration will has a long queue, so i dont have enough time to hk aiport. is it the quickest transportation from sz to hk airport? where i should buy the ferry ticket, from travel agent in sz or online or get it on the spot which better?

Yes, the customs won't check your visa if taking a ferry to HKIA. This is the fastest way and many passengers would choose the transportation mode. Sometimes, it really has long queue. Therefore, it is best to book ticket in advance. I know Turbojet offers the ticket reservation service. You may search it online and try to book.