Introduction: The mean of patient’s length of stay in the Emergency Department is considered to manage the patient’s crowing. This paper measures the length of stay and factors that could potentially influence on patient’s stay in emergency department. Objective(s): To reduce length of stay and early disposition of patient in in patient area for continuity of care. Design: Prospective study design used and evaluate intervention to improve patient safety. Settings: Emergency Department of a Tertiary Hospital Lahore Pakistan Methodology: By using the change theory of management we identify the factors which impact on Length of stay Educate and motivate staff, we developed and implemented Nurse physician hand over checklist as well as developed LOS tool in emergency, furthermore staff reviewed patient and gave reminder to consultant a fro early bed vacation. Moreover we empowered our nursing staff. Results: After implementation of kut Lewis model, there is huge fluctuation in the graph through march 2018 to January 2019 and it significantly increased in the month of February 2019 and the emergency length of stay dropped from 4.1 to 5 hours after we reviewed our process, retrained staff in the month of February after training and followup results dropped dramatically to 3 hours by March until April 2019. Conclusion: In conclusion, all factors directly impact on patient length of stay for this purpose management developed some strategies against this to overcome this issue. These strategies really help especially the bed management team played very important role on it.