Zilin Zhang 張梓琳 182cm (UPDATED)

Zilin Zhang (張梓琳) was the winners of both Miss China and Miss World in 2007. No Asian had ever been crowned Miss World before her. In school, Zilin Zhang was a good student and also a great athlete, who excelled in hurdle and triple jump. Competing in a high level sport surely contributed to her fit figure. Combined with her height and an beautiful yet amiable face, it's by no mean a coincidence that she won those beauty contests. 

She is very tall (182cm = 6') for a female even by the Western world standard. In the popular China-based forum 'Tianya', there was a thread discussing about how Zilin Zhang always outshines other beauties in group photos. Her towering height may be a decisive factor of that, in additional to her gorgeous face. 

Zilin Zhang in New York

Mai Phương Thúy 184cm

Mai Phương Thúy was the 10th Miss Vietnam. On the English Wikipedia at this point she is recorded as 188cm (6'2) tall. In the Vietnamese version, however, she's currently recorded as 179cm (5'10.5). On the other hand, the majority of the material I found with Google claimed she is 184cm tall, so I just took this median value among the three as her height in the title. Mai might look quite mature but she's only 25 years old now, as she's born in 1988.

Mai Phương Thúy tried to not embarrass the man 

Chi-Ling Lin 林志玲 175cm

Chi-Ling Lin (林志玲) is arguably the most established fashion model thus far in Taiwan. She attended University of Toronto and completed her double major in Western art history and economics in 1997. In her early career, she was mainly a fashion model for a living. In 2004, as public exposure increased, her popularity skyrocketed in Taiwan due to her extraordinarily charming figure and sweet personality, and her 175cm stature often made her stand out in groups of celebrities, which deepened people's impression of 'the Goddess Chi-Ling'. Thereafter, she has been to Japan and Mainland China to pursue her TV and movie careers, and become a highly well known celebrity across numerous Asian countries. In 2011, she found a charity to help children welfare. Just a fabulous lady overall.

Chiling Lin with 158cm Dee Hsu, who was standing on a
box in an attempt to make up their height difference