The aim of this study is to examine the influence of Organizational Culture, Interpersonal Communication, Work Motivation to Teacher's Performance either individually or jointly. Variables of Organizational Culture, Interpersonal Communication, Work Motivation as independent variables while the dependent variable is Teacher's Performance. The study was conducted on randomly selected 160 teachers of Senior Islamic High School in the city of Jambi, Indonesia. Using mix method, a sequential explanatory design is applied where quantitative come first. The study both quantitatively and qualitatively reveals that there is a positive significant relationship between variables under the following distribution of coefficient of correlation: Organizational Culture to Teacher's Performance = 0.646, Interpersonal Communication to Teacher's Performance = 0.681, Work Motivation to Teacher's Performance = 0.660 and when tested together it produces coefficient of correlation = 0.613 and coefficient of determination = 0.375 indicating the existence of other 62.5% variables not including in the model affecting performance within the teachers' working environment