This study aims to examine and describe the effect of the community of inquiry (CoI) learning model and learning styles on students' social skills. The sample used was a student of the faculty of education IAIM Bima Indonesian totaling 114 people, consisting of two experimental groups with 56 students and two control groups were 58 students. The community of inquiry (CoI) learning model was applied in the experimental group whereas the control group applied a cooperative learning model (comparison). This research is a quasi-experiment in which the analysis of prerequisites is applied; normality used the normality QQ plot and homogeneity of variance test used Levene's test. Research data were analyzed by applying the Analysis of Variance (ANOVA). The results of show that there are significant differences in the social skills of students who use the community of inquiry (CoI) learning model with cooperative learning model, there are differences in social skills of students in terms of the dimensions of learning styles of visual, auditory and kinesthetic, there is also an interaction between community of inquiry (CoI) learning model and learning styles on students' social skills.