Endotracheal intubation and invasive mechanical ventilation are fundamental components for the resuscitation of neurocritically ill patients to achieve various goals which include ensuring the protection of the airway, participating in tissue oxygen delivery and indirectly modulating cerebral vascular reactivity. The neurocritical patients demand special attention to their systemic involvement regarding weaning. Physician prompt clinical decision criteria (PPC) can play a better role in weaning of such patients. The aim of this study was to evaluate the effectiveness of 'Physician prompt clinical decision criteria' for successful weaning in neurocritical patients. This prospective observational study was conducted in the ICU, Department of Anaesthesia, Analgesia, Palliative & Intensive Care Medicine, Dhaka Medical College Hospital (DMCH), Dhaka, Bangladesh from March 2018 to April 2020. In total 100 neurocritical patients who fulfilled the inclusion criteria were taken as samples by informed written consent. The outcome was observed as successful weaning or as failed weaning. Finally, the existence of Standard extubation criteria (SEC) was compared with Physician prompt clinical decision criteria (PPC). Weaning was succeeded in 80.0% of patients and failed in 20.0% according to the Standard extubation criteria (SEC) while weaning was succeeded in 85.7% of patients and failed in 14.28% according to the Physician prompt clinical decision criteria (PPC). There were some differences in results but no significant differences were observed statistically between the groups in predicting the weaning outcome. Physician prompt clinical decision criteria were found to be 75.0% sensitive and specificity was 50.0%. Positive predictive value for Physician prompt clinical decision criteria was 85.70% with a Positive likelihood ratio for these criteria was 1.5 times. So, according to the study findings, accuracy of Physician prompt clinical decision criteria was 70.0%. According to the findings of this current study we can conclude that Physician prompt clinical decision criteria are an effective weaning readiness predictor in neurocritical patients.