Misconception is a notion which is contradictory with the scientific one or the idea claimed by experts in a certain Field; the notion is inaccurate upon a concept, the concept use is false, its exemplifications are wrong, the different concepts are confusing, and the hierarchical relation of the concepts is wrong. Therefore, information about misconception is required so as to avoid a continuous misconception. One of the factors which affect the mastery of concept by the students deals with their cognitive style. The objective of this research is to identify and describe the existence of misconception in the subject matter of Basic Introduction to Mathematics with the topic of discussion of Logics viewed from the studentsâ cognitive style.This research used a descriptive qualitative method with a case study approach. The subjects of the research were the first semester students of the Study Program of Mathematics Education of STKIP PGRI Pacitan, Year 2011. The samples of the research were taken by using the purposive sampling technique. The identification of the existence of misconception was done by using the Certainty of Response Index (CRI) developed by Saleem Hasan, and the identification of the studentsâ cognitive style was conducted by using the instrument of Group Embedded Figures Test (GEFT) developed by Witkin. The data of the research were analyzed by using the model claimed by Miles and Huberman.The results of the research show that the proportion of misconception by the students with the cognitive style of Field dependent (FD) is higher than that of students with the cognitive style of Field independent (FI). The students with FD undergo more misconceptions in inversion, conversion, and contraposition (38%) whereas the students with FI undergo more misconceptions in plural statement negations and in negations with quantifiers (32%). The misconceptions by the students with FD are largely caused by their wrong pre-conception and low ability. Meanwhile, the misconceptions by the students with FI are mostly due to their wrong simplification and intuition. Keywords: Misconception, cognitive style, CRI and GEFT.