Background: Traumatic injuries represent a leading cause of global morbidity and mortality, placing immense demand on emergency healthcare systems. The perioperative period is critical for patient outcomes, requiring not only proficient surgical and emergency nursing care but also attention to the significant psychological distress experienced by patients. Objective: This study aimed to analyze the combined effects of standardized surgical emergency care protocols and structured psychological nursing interventions on clinical outcomes, complication rates, and psychological well-being in patients undergoing emergency surgery for trauma. Methods: A prospective cohort study was conducted involving 120 traumatic surgical patients admitted to the emergency department. Participants were systematically allocated into an intervention group (n=60) receiving integrated standardized surgical emergency care plus targeted psychological nursing interventions, and a control group (n=60) receiving standard surgical emergency care alone. Clinical parameters (vital sign stability, time to surgery, complication rates), physiological indicators (pain scores, cortisol levels), and psychological metrics (Hospital Anxiety and Depression Scale - HADS, Post-Traumatic Stress Disorder Checklist - PCL-5) were assessed at admission, pre-operatively, post-operatively (24h, 72h), and at one-month follow-up. Results: The intervention group demonstrated statistically significant improvements compared to the control group. Key findings included enhanced hemodynamic stability pre-operatively (p<0.01), reduced mean time from admission to operation (p<0.05), lower incidence of post-operative complications such as infection and delirium (15% vs. 31.7%, p<0.05), and significantly lower reported pain scores at 24h post-operation (p<0.01). Psychologically, the intervention group showed markedly lower HADS scores for anxiety and depression at 72h post-operation and at one-month follow-up (p<0.001), as well as lower PCL-5 scores indicative of reduced PTSD symptom severity (p<0.01). Patient satisfaction scores were also significantly higher in the intervention group (p<0.001). Conclusion: The integration of structured psychological nursing interventions with standard surgical emergency care protocols significantly improves both physiological and psychological outcomes in traumatic surgical patients. This dual approach facilitates smoother perioperative transitions, reduces complications, alleviates psychological distress, and promotes long-term recovery. These findings underscore the necessity of incorporating psychological support as a core component of holistic trauma care protocols.