This present investigation was attempted to study the Social Skill and Academic Achievement of XI standard students. The sample consisted of 433 XI standard students were selected from 10 schools of Pudukkottai district. The data were collected by using Social Skill Inventory developed by the investigator S. Dharmaraju (2011). Collected data were subjected to suitable statistical analysis and scores of the sample were computed. The results of the study revealed that Social Skill and Academic Achievement of XI standard students differed significantly in their Sex, Medium of Instruction and Type of School Management. There exists a high positive correlation between Classroom Climate and Academic Achievement of XI standard students. There exists a Low Positive Correlation between Social Skill and Academic Achievement of XI Standard Students.