Background and Objective: Pain is a ubiquitous experience for any individual; especially for a child. Distraction during painful procedures like veni puncture has been found to reduce child’s response to pain during venipuncture. The study was conducted to assess the effect of Kaleidoscope as a distraction tool on pain in children during venipuncture. Material and Methods: The design used for the study was True Experimental post test only design. The study was conducted among children between 3-12 years admitted in the paediatric ward and attending paediatric outpatient unit of Jipmer, Puducherry. Hundred samples who fulfilled the inclusion criteria were assigned randomly to experimental and control group.Kaleidoscope was shown to child and the care giver in the experimental group before the procedure and its functioning was explained. Then the child was allowed to look through the kaleidoscope during the procedure and the paid assessment was done using FLACC pain scale. The child in the control group underwent venipuncture without having kaleidoscope as a distractor and the pain was assessed using FLACC Scale. Results: The comparison of pain scores between the groups showed that mean pain score in the experimental group and in the control group was 5.46+1.581 and 6.36+1.439 respectively and the differences between the groups were found to be statistically significant (p<0.01).The study showed that pain was associated with the age of children undergoing venipuncture and not found to be associated with other variables. Conclusion: The study concluded that Kaleidoscope is effective as a distractor in reducing pain in children during venipuncture. This technique emphasizes the concept and importance of providing atraumatic care to children.