In general the performance of any student is measured by their achievement in their education. Only academic achievement is considered as the prime basis for admission purpose. Even in selection of different professional courses and jobs also educational achievement play a vital role. This research deals with the relationship between academic achievement and intelligence of X class students in Ramakrishnpur of Mancherial District of Telangana State of India. As per the Garrett: “Intelligence as including the abilities demanded in the solution of problems which requires the comprehension and use of symbols.” The present study is focusing on the relation between the intelligence and Academic achievement of X class students in rural area and that too from the Government school. Intelligence plays a vital role on their children’s academic achievement. Different levels of intelligence are influencing the performance and curriculum achievement of the children’s in their different levels.