<p>General interference presents a significant challenge in wireless collaborative communication systems. While interference can detrimentally affect system performance, it also serves as a medium for energy transport. Simultaneous wireless information and power transfer (SWIPT) is a viable solution for interference energy collecting. This study examines the interruption probability of SWIPT relay systems under interference, with a specific focus on scenarios where the relay operates in time block switching and decode-and-forward (DF) modes. Under strong interference conditions, we propose two relay resource allocation strategies (RRAS) based on time block switching to mitigate the interruption probability attributable to interference. A resource allocation coordinate system is established, allowing for a prudent allocation of regions designated for energy collecting (EC) and information forwarding (IF) by manipulating the resource allocation strategies. Our analysis reveals a correlation between non-interruption probability and the adopted resource allocation strategies. We derive mathematical expressions for the non-interruption probability associated with these proposed strategies. Numerical simulations demonstrate that the proposed strategies effectively reduce the interruption probability. Additionally, we examine the impact of some parameters on interruption probability, with results indicating that the proposed strategies outperform traditional approaches.</p>