This study examined the relationship between motivational style and academic achievement among 2,220 secondary school males and females in Hong Kong. Respondents were classified into high, average, or low academic performance (AAP) groups based on a single average for academic subjects obtained from their schools. Respondents were also classified into top, middle, or bottom groups based on their perceived academic performance (PAP). Results indicated that only 42% of the students perceived their academic performance correctly. Compared to their lower AAP counterparts, high scoring AAP males were significantly more serious, conformist, and arousal-avoidant. The high scoring AAP female group was found to be more self-oriented than the other female groups. The top PAP male group was also found to be more serious, conformist, arousal-avoidant, and optimistic than the other PAP male groups. The top PAP female group was more self-oriented and optimistic than the other two PAP groups. The present findings suggest that the traditional Chinese cultural values of collectivism, diligence, and education are major influences on shaping the motivational style of Hong Kong Chinese high school students. The implications of the results for school psychologists and teachers are also discussed. (Contains 2 tables.)