Abstract: Introduction: Behavioural and psychological problems are one of the common problems in children attending Pediatric outpatient department. Identification of behavioural and psychological problems is most important not only to prevent further progression of illness but also for proper growth and development of the child. Objective: Aim of this study is to determine the proportion of various behavioural and psychological problems in children of age 6 to 12 years. Material & methods: The study was conducted for a period of 3 months in 2018. Study was done on 500 children of 6-12 years attending Pediatric outpatient department Rajshahi Medical College Hospital and some Private Hospitals Rajshahi, Bangladesh. Children were screened using child behaviour check list (CBCL). Patients who were positive for behavioural problems in CBCL were assessed with DSM V criteria for any psychiatric illness. Results: In our study, we found that 7% children had behavioural and psychological problems. Enuresis was a very common problem in children between 6 to 12 years of age.11 children (2.2%) had enuresis. Another common psychological problem found in our study was PICA. 1.8% children had PICA. Conclusion: Identification of behavioural and psychological disorders is most important so that preventive and treatment strategies can be planned at the earliest to prevent psychiatric morbidity in later life.