Communication has been praised as the foundation of all nursing care. Inaccurate shift handover and communication overload can be directly related to the patient’s adverse outcomes. Continuity of patient care is achieved through clear and concise transfer of patient clinical information from one healthcare provider to another during handoff by ISBAR communication strategies. Methods: Quantitative evaluative approach of one group pertest post-test design was used to test SIM performance in ISBAR techniques. Staff Nurse were selected by convenience sampling technique and sample consists of 60 staff nurses, working in ICU PESIMSR hospital, Andhra Pradesh. Semi structured questionnaire was used for data collection. Descriptive and Inferential statistics were used to investigate data collected in terms of policies. Results: The analysis shows that, there was significant difference in mean percentage knowledge score of the ISBAR clinical communication between pertest (35%) and post-test (92%). the estimated value of parade's’ value was 27.675 greater than the table value, which is known to have made significant progress in the total knowledge score. Conclusion: ISBAR clinical handover Communication tool was effective on nursing shift handovers and help for holistic care of ICU patient.