Online psychological counseling platforms are revolutionizing personalized care by harnessing the power of big data. These platforms gather comprehensive user data from various digital touchpoints including interactive assessments, real-time session notes, and feedback surveys. Advanced machine learning techniques analyze this data to discern individual behavioral patterns, enabling the system to customize therapeutic approaches effectively. The integration of big data allows for the continuous refinement of mental health interventions, adapting to each user’s evolving needs with precision. This method not only enhances the accuracy of psychological support but also optimizes the delivery of services, ensuring that users receive interventions that are both timely and highly personalized.