This research is motivated by increases of work stress factors that happens in the company caused of role ambiguity, role conflict, role overload, and interpersonal demands within the company that decreased the employee performance. The purpose of this study was to clarify the effect of work stress with role ambiguity variables (x1), role conflict (x2), the role of excess (x3), and interpersonal demands (x4) simultaneously, partial, well as to explain the dominant variable influence on employee performance (y) Plasa Telkom Group Malang.The type of research used in this research is the explanatory research with a quantitative approach to describe the relationships between variables through hypothesis testing. The population in this study is the employees of Plasa Telkom Group Malang is 203 employees, with a sample size of 67. Data collection used in this study are questionnaire and documentation with data analysis techniques used multiple linear analysis.These results explain the variable role ambiguity, role conflict, role overload, interpersonal demands simultaneously affect the employee\u27s performance Plasa Telkom Group Malang. Partially explained that each of the independent variables (role ambiguity, role conflict, role overload, interpersonal demands) were used in this study has a significant influence. This explains that when role ambiguity, role conflict, role of excess and higher interpersonal demands will affect the performance decreases