This study was conducted with the aim of indicating the relationship between competency of human resources and performance of the managers of human resources working in diff erent sections of Bushehr University of Medical Sciences and Medical Services. The method used in this study was practical in terms of objectives and descriptive-correlational in terms of data collection. In this study, the statistical population consisted of all the managers of diff erent parts of Bushehr University of Medical Sciences and Medical Services including 257 individuals. Among these individuals, 149 persons were chosen as the sample size using the Morgan table and the Simple Random Sampling Method. In order to collect the data, a researcher-made questionnaire with 21 questions was used including the questionnaires of Morgan (2011), Ramprest and Hubert (2008) and Mohammadi Zanjirani (2012) for competencies of human resources and it also included a researcher-made questionnaire of the managers' performance with 30 questions based on the Keykhan Nezhad pattern (2008). The Cronbach's alpha method was used for the fi nal assessment which the values were 0.74 for the fi rst questionnaire and 0.81 for the second one. The content validity test was also utilized to check the validity so that the questionnaires were approved by the related experts. Analyzing the collected information from the questionnaire was performed by using SPSS so ware in two parts of Descriptive and Inferential (Kolmogorov-Smirnov test, the Pearson correlative test, and the multiple regressions). The results indicated that there was a positive and signifi cant relationship between the two structures of human resources competencies and performance of the managers of human resources. Moreover, the relationship between all the dimensions of competencies (knowledge, attitude, skill and characteristic) and performance of the managers of human resources was signifi cant.