Background: Expressed emotion is a measure of the family environment that is based on how the relatives of a psychiatric patient spontaneously talk about the patient. Outcome of the mental disorder depends upon the various prognostic factors. Among various prognostic factors, expressed emotion is the bad prognostic factor, which is the negative attitude shown by a family member toward the patient. This expressed emotion can be reduced and is reversible if the family member and the patient undergo various psychoeducation programs. Aim: To find out the effectiveness of psychoeducation on expressed emotion of family members and patients with schizophrenia. Method: The study adopted a quantitative approach with pre-experimental design. Fifty patients with schizophrenia and their family members from Tertiary Hospital of Assam, following convenience sampling technique, were selected. Brief Psychiatric Rating Scale (BPRS) was used to rule out psychopathology in patient. Family Attitude Scale and Family Emotional Involvement and Criticism Scale were used for assessing the expressed emotion of family members and the patient as a pretest and then on the same day psychoeducation was provided. On the 30th day of follow-up, again assessment of expressed emotion was done by using same scales as posttest. Analysis was done by using SPSS version 18. Results: There was a significant difference between the expressed emotion of family members and patients with schizophrenia following psychoeducation. So, psychoeducation was effective to decrease the level of expressed emotion. Conclusion: Psychoeducation has a positive impact on decreasing the level of expressed emotion and thus improving the outcome of mental illness.