This study aims to be able to see how the potential and competency assessment services affect the evaluation of ASN performance as a basis for objective and accurate selection, rotation and promotion for prospective administrator officials. In this study is quantitative with a descriptive analysis including data got from the field or sampling population to be analysed and presented a statistical interpretation in accordance with the method chosen. The conceptual framework of this research consists of independent variables, particularly: The first potential (intellectual potential, work attitude potential, personality potential, and leadership potential). The second competency (personal competence, work competence, interpersonal competence and managerial competence). For a dependent variable is an evaluation of the performance appraisal of echelon III officials (administrators) of West Nusa Tenggara province. In this study, several data sources are used as a strategy to increase the credibility of the data used. In this study, the type and source of data used are secondary data obtained by researchers indirectly through documents, potential result, competency results and performance appraisal of administrator officials data. This research will be conducted in the government of West Nusa Tenggara Province within a duration of 1 (one) year from January 2019 to December 2019, The sample size in this study was 60 people. Data analysis in this study (Univariate, Bivariate and Multivariate analysis) uses computerized data processing for the Statistical Package for the Social Sciences (SPSS) program. All hypothesis Proven There were influences among those variables Independent and Dependent. The result shows a positive relationship between potential and performance Appraisal has a modest number (0,370), Value determination (0.137) and with sig. (0.004). The second positive Relationship between competencies and performance appraisal shows strong
influences (0.530), value determination (0.263) and sig. (0.000). The last positive relationship shows from both of Independent Variable to dependent variable, Potential and Competencies Result have Simultaneously influenced the Performance Appraisal to have a strong relationship (0.640), value determination (0.410) with sig. (0.000).