The game settled into a midfield battle in the second half, with both teams creating opportunities, but failing to finish.
Hong Kong finally came undone in the 75th minute after Azamova Gulnara hammered home Uzbekistan's second from close range.
A minute later Gulamova Elmira scored from the spot to claim the Uzbeks' third and Gulnara finished things off for Uzbekistan in the 78th minute when she scored her second of the match and Uzbekistan's fourth.
Taiwan plots course to victory
Taiwan remains the firm favorite to win group A, having already scored 24 goals and gained nine points from three matches.
Taiwan can only be toppled by the South Korean squad, that is currently in second place with six points and 10 goals after two games.
Although the Koreans have a game in hand, they will need to clock up two very high scoring victories against Taiwan and Thailand if they are to overtake the top spot in group A and qualify for the semifinals.
RSS