An evaluative approach with one group pre-test post-test design was used for the study to evaluate the effectiveness of structured teaching programme on knowledge regarding management of violent patients among the nursing students at selected college. The sample consists of 60 nursing students selected by purposive sampling method. Data was collected by administering a structured knowledge questionnaire prepared by the investigator. In the present study, the post-test mean knowledge score was found higher (X2= 26) than compared with pre-test mean knowledge score(X1= 17). The ‘t’ value computed (t= 30.61; p<0.001) showed significant difference suggesting that the STP was effective in increasing the knowledge of nursing students regarding the management of violent patient. The mean post-test area wise scores (X2= 14 and 12) respectively were higher than the mean pre-test area wise score (X1= 9.33 and 7.67).