This document details the development of a passive sun-tracking control system for high concentrated photovoltaics (HCPV) utilizing a dual-axis tracking mechanism. The system aims for precision tracking with an error margin of less than 0.5 degrees, implemented through LabVIEW software and employing a collimating tube for accurate measurements. The experimental results indicate the feasibility and effectiveness of this passive sun-tracking system for enhancing solar energy absorption efficiency.