Introduction: Typical complications in pediatric anesthesia are respiratory problems, medication errors, difficulties with the intravenous puncture and pulmonal aspiration. Pediatric patients differ in their drug requirements because of their smaller body size, differences in body composition and handling capacity of drugs. Usually dosages are based on body weight, because it correlates so intimately with body water compartments. Objective: To find out the Intra-Operative & Post-Operative Complications in Pediatric Anesthesia. Materials & Methods: The present study was conducted in the Department of Anaesthesiology, Shaheed Ziaur Rahman Medical College Hospital, Bogura, Bangladesh during from April 2020 to March 2021. It included 83 pediatric patients of both gender. Parents were informed regarding the study and written consent was obtained. Ethical clearance was taken from institutional ethical committee. General information such as name, age, sex, ASA status, technique of anesthesia and complications were recorded. Results: The prospective study was conducted to identify anesthesia-related complications in pediatric patients. The present study was conducted on 83 pediatric patients of both genders. Factors such as conscious state, colour, respiration, pulse and blood pressure were also assessed. Age group 1 month- 1 year had 12 males and 18 females. 1-5 years had 10 males and 15 females, 6-10 years had 11 males and 15 females and 11-18 years had 01 males and 01 females. The difference was non- significant (P-0.5). Patients had ASA I (72), ASA 2 (17), ASA 3 (5), ASA 4 (1) and ASA 5 (1) Status. The difference was significant (p-0.05). Type of anesthesia was general anesthesia (50), general anesthesia with caudal block (14), subarachnoid block (1) and general anesthesia with local anesthesia (18). The Difference was significant (p-0.01). Common intra- operative complications were bradycardia (3), tachycardia (2), hypotension (2), cardiac arrest (2), ...............