Abstract There is no single magical formula for motivating students. Many factors affect a given student's motivation to work and to learn. This study focused on the correlation between self assessment and motivation in learning English of the Second Grade students of SMPN 6 Palembang. There are four objectives in this study:1) to find out how the second grade students of SMP N6 Palembang motivation in learning English is; 2) to find out how the second grade students of SMPN 6 Palembang self assessment is; 3) to find out whether or not there is any significant correlation between self assesment and motivation in learning English of The Second Grade Students of SMPN6 Palembang; and 4) How much self assesment contribute to Students’ motivation in learning English of The Second Grade Students of SMPN 6 Palembang. The data were collected by using questionnaire of 70 students that were taken as the samples by using random sampling. Then, it was analyzed by using Person’s Product Moment Correlation Coefficient and the calculation was done by using SPSS (Statistical Package for Social Science). The result of the study showed that 72.9% of the second grade students of SMP N6 Palembang had good motivation in learning English and 67.1% of the second grade students of SMPN 6 Palembang also had good self assessment. In addition, the degree of correlation coefficient proved strong with the value of correlation 0.715 and self assessment itself contributed 51.1% to the students’ motivation in learning English. From the above explanation, self assessment proved significantly has a very important role in learning language especially English. Keywords: motivation, self assessment, English learning