Currently, the pratice of knowledge sharing has become a key factor in gaining and producing better knowledge among of the Malaysians including public servants. Knowledge sharing culture is believed to be a very important culture that needs to be developed and implemented in every organization in public sector in Malaysia in order to achieve better job performance. This research was based on data obtained from a survey The data was analyzed to evaluate and determine the relationships of the key determinants of knowledge sharing culture and job performance in Majlis Bandaraya Shah Alam (MBSA)> The correlation Analysis method identified the relationship between every independent variable with job performance and it showed that trust, self efficacy, reward.