Abstract A second language learner’s cognitive style is one of the many factors that may influence his/her success in second language acquisition (SLA) One of cognitive styles, Field Independence (FI) has been chosen in the present study because it seems to attract most attention in SLA The present study attempts to investigate the roles that FI plays in the reading ability, one of the most important skills in SLA In the present study, the reading ability refers to the ability in three most frequently occurring reading types, skimming, scanning, and careful An experiment has been conducted to explore the relationship between the reading ability of the three reading types and FI In addition, the differences between effective readers and ineffective readers in FI were 106 medical students from the same big class in the First Military Medical University (FiMMU) participated in the A questionnaire was designed to assess the student’s degree of FI Two reading comprehension tests were designed to assess the student’s reading ability, one for skimming and scanning, and the other for careful Results show that there is a significant relationship between FI and skimming or careful reading, and that there is a significant difference between effective readers and ineffective readers in FI The findings of the present study show a picture of the role of cognitive style of Chinese medical students in English reading In addition, they are beneficial for the Chinese English teachers to accommodate reading classroom activities according to the students’ different cognitive styles, so as to obtain the best reading Key words: cognitive styles; field independence; reading abilityReading is one of the basic skills which language learners should Their reading capability has been a symbol of literacy for a long People need to develop their reading ability so as to read efficiently and benefit from the wealth of information in the present For second language learners, it is essential to read well in a target Reading is probably the most important skill in learning a foreign And reading in another language allows for one more channel of communication and for an important source of The importance of reading has initiated much research in SLA And the reading process has been one of the key aspects of reading With the influence of psycholinguistics, the research of the reading process has been developed The well-known theories include: the bottom-up model, the top-down model, and the interactive