Mobbing which means oppression and coercion exercised on employees may result in negative consequences both for the organization and its employees. In this study, in order to make a strategic planning of healthcare management, we evaluated the effect of mobbing on motivation of healthcare providers working in state-teaching hospital. We performed questionnaires, composed 3 sections; 1st part: 6 questions related to demographic data, 2nd part: 21 questions related to mobbing behaviors, 3rd part: 16 questions related to correlations between mobbing behaviors and motivation of health care providers. Hundred questionnaires out of 150 were included in the study. This study revealed that mobbing behaviors have negative impact on motivation of healthcare providers. This situation leads to inability to perform their duty. During evaluation of the mobbing, main problem is not the economical results of loss of manpower; ethical issues related to human rights.