In this study, we consider two factors affecting the performance of auditors, team-oriented Leadership and Audit voice. Auditors work in hierarchical group teams that Concerns of assessment by supervisors has a significant impact on the expression of opinions and ideas. We using two standard questionnaires for measuring team- oriented supervisor and voice auditor. Then we use from scenario measure ability's auditor in express ideas. NCSS statistical software was used to determine the sample. The participants in our study are 104 auditors and supervisors of 6 audit firm in Mashhad that were randomly divided in teams of four. When the scope of our research is the year 1395.We analyzed Hypotheses with using Pearson correlation and Tests of Between-Subjects Effects. Our results show a significant impact of these factors on the performance of auditors. Our research has important achievements for audit firms.