Currently, segmented fracturing technology in horizontal wells has become the primary method for developing unconventional oil and gas reservoirs. Tracer monitoring technology has emerged as a primary method for monitoring segmented fracturing in tight oil horizontal wells. Nevertheless, the current tracer monitoring technology presents significant challenges in simultaneously achieving low-cost, long-term, and reliable monitoring of fracturing parameters and fluid production profiles in fractured horizontal wells. A novel approach has been developed, which involves filling the fractures with slow-release tracer particles. By monitoring tracer concentrations during the fracturing flowback period and subsequent production, this method allows for the characterization of fracturing parameters and monitoring of production profiles in tight oil horizontal wells during normal operations. Therefore, this study uses self-made slow-release tracer particle samples, observed under a microscope, to conduct indoor static and dynamic release kinetics experiments as well as slow-release tracer particle propped fracture dynamic simulation experiments. The results of static release kinetics experiments provided further confirmation that the presence of micropores and channels within the polymer skeleton of slow-release tracer particles is the underlying cause of their slow release profile. Static release kinetics experiments further verify the presence of micropores and channels in the slow-release tracer particles, which facilitate the stable release of the effective tracer components. Dynamic release kinetics experiments show that scouring velocity is the primary factor influencing the release rate of the effective tracer components: the faster the scouring velocity, the quicker the release. The slow-release tracer particle propped fracture dynamic simulation experiments first demonstrate that laying the slow-release tracer particles has minimal impact on the conductivity of the propped fracture. Additionally, the release kinetics characteristics of the slow-release tracer particles correlate with known fracture morphologies, allowing for the inference of various artificial propped fracture morphologies. This provides a theoretical basis for future fracture morphology predictions. The research results of this study lay a theoretical foundation for the further application and comprehensive interpretation of slow-release tracer particle fracturing technology in segmented fracturing of horizontal wells.