This book is a report on the academic achievement assessment of Grade-6 students in primary school with a large-scale sample for the first time since the new curriculum reform. This report consists of the general report, reports on the four subjects of Chinese, Mathematics, Science and Morality and Society, the questionnaire survey report and assessment instruments. This report states the complexion of students' academic achievement including achievements and shortcomings and proposes some targeted suggestions. The methods and assessment instruments have important reference value for future academic achievement assessment.