This review critically examines evidence-based psychosocial interventions for Schizophrenia Spectrum Disorders (SSD), focusing on those with consistent effectiveness. Cognitive remediation, metacognitive training, social skills training, psychoeducation, family interventions, cognitive behavioral therapy, physical exercise, lifestyle interventions, and supported employment are considered evidence-based treatments. These interventions are particularly useful in early intervention services. Future research should focus on developing new interventions, understanding barriers to implementation, and exploring novel technologies. The review highlights the importance of personalized treatment approaches, as different interventions are effective for different outcomes. While pharmacological treatment is essential, psychosocial interventions complement it by addressing areas not improved by medication. Evidence-based interventions should be widely implemented to improve real-world outcomes for people with SSD. The review also notes that combining interventions can enhance effectiveness, and that physical exercise and lifestyle interventions are beneficial for cognitive performance and overall functioning. Family interventions and psychoeducation are effective in most patients, especially those with relapses. Supported employment helps individuals achieve competitive jobs. The review emphasizes the need for further research to optimize these interventions and improve their implementation in clinical practice.This review critically examines evidence-based psychosocial interventions for Schizophrenia Spectrum Disorders (SSD), focusing on those with consistent effectiveness. Cognitive remediation, metacognitive training, social skills training, psychoeducation, family interventions, cognitive behavioral therapy, physical exercise, lifestyle interventions, and supported employment are considered evidence-based treatments. These interventions are particularly useful in early intervention services. Future research should focus on developing new interventions, understanding barriers to implementation, and exploring novel technologies. The review highlights the importance of personalized treatment approaches, as different interventions are effective for different outcomes. While pharmacological treatment is essential, psychosocial interventions complement it by addressing areas not improved by medication. Evidence-based interventions should be widely implemented to improve real-world outcomes for people with SSD. The review also notes that combining interventions can enhance effectiveness, and that physical exercise and lifestyle interventions are beneficial for cognitive performance and overall functioning. Family interventions and psychoeducation are effective in most patients, especially those with relapses. Supported employment helps individuals achieve competitive jobs. The review emphasizes the need for further research to optimize these interventions and improve their implementation in clinical practice.