从国外回国经香港，需要办什么手续？

Transit

14. Chinese passport holders who are in transit through Hong Kong to and from another country or territory may be granted a stay of seven days on each landing without the prior need to obtain an entry permit provided that usual immigration requirements are met, including possession of valid entry facilities for the destination and confirmed onward booking for the overseas journey.

這是入境事務處網頁轉來的.

http://www.immd.gov.hk/ehtml/hkvisas_9.htm