The purpose of this paper is to find out effect of social media like Facebook, Twitter, LinkedIn, etc. on employees performance. Model presented in this paper which shows the role and format of key variables. The model showed that social media effect on employees performance of the corporate sector of Pakistan. Descriptive research design and quantitate approach is used in this research. The research is held in Engro Corporation Sahiwal, Pakistan. Data is collected from 100 employees as sample size, so that real scenario can be shown. This study shows that social media have a strong impact and becomes an essential part of everyone’s life. Social media effects working environment of employees of Engro Corporation too much. For investigating key issue literature of different author and personalities (which are at high designations in well reputed organizations) was studied and discussed. Reliability, Regression and Correlation analysis were done for data analyses. It showed that social media have a strong effect on the employee’s performance. Employees that are using social media, effects their performance in a positive way. This paper explores the social media necessity of employees and its usage for improving performance. Organizations should use social media for increase their employee’s performance in interesting ways rather than typical training programs. Key Words: Social Media, Employees Performance.