The purpose of this study was to reveal the critical assessment of national youths service corps in Nigeria. The instrument used were questionnaire, the questionnaire was used to answer the research questions made up of four items population for this study were made up of 120 (one hundred and twenty) people comprising the NYSC staff and staff of student affairs in federal polytechnic, oko. The instrument used were supervisor and corrected by the supervised before the final copy was made. The data collection was analysed in simple percentage in chapter four (4) based on the analysis. Major findings were indicated and conclusion drawn. Based on the findings, the researcher finally made her recommendations. That supervisor should be appointed to supervise the corps members during their service year. Also, that proper orientation should be given to them so that the aim of achieving national integration will be ensured categorically from the scheme.