Water huff-n-puff (WHP) stands out as a prevalent technique utilized to enhance oil recovery in tight reservoirs. Nonetheless, the substandard flow conductivity and inadequate sweep efficiency within the matrix pose limitations on its oil recovery efficacy. In this context, the concept of N2-water alternating huff-n-puff (NWAHP) emerges as a proposed method to amplify oil recovery under reservoir conditions. Initially, the viability of this approach was substantiated through a comparative analysis between NWAHP and WHP experiments. Subsequently, the impact of injection methodology, N2-water ratio (NWR), soak duration, and the number of injected plugs on oil recovery was scrutinized. Findings unveiled that the single-cycle oil recovery from NWAHP reached 13.95%, marking a 3.51% increase compared to WHP, thereby showcasing its superior efficacy in augmenting WHP outcomes. The N2-water injection process exhibited the ability to protract the breakthrough of N2 during production by introducing a water slug, consequently yielding higher oil recovery rates compared to water- N2 injection. Elevating the NWR was observed to boost elastic energy and enhance oil displacement into the matrix, albeit excessively high NWR values led to premature N2 breakthrough during production. Augmenting the soak duration proved effective in enhancing the diffusion range of N2 within the core and optimizing the water imbibition process. Furthermore, increasing the number of injected plugs bolstered the pressure exerted during injection, thereby amplifying the swept volumes of N2 and water.