Wind-driven triboelectric nanogenerators (TENGs) featuring high energy densities and simple mechanisms are gaining significant attention as alternatives to large-scale wind turbine power generation. However, despite their high voltages, the low current output in the microampere range and effective power must be improved for commercial viability. Therefore, this study proposes a multistrip-flutter TENG (MSF-TENG) that improves the electrical and mechanical performance of devices. The MSF-TENG consists of a stator with a discharge gateway and a conductive flutter with cuts in the wind direction. This structure generates an electrostatic discharge (ESD) based on the air-breakdown phenomenon, while the multistrip flutter (MSF) structure enables ESD where the electric field is strongest. Furthermore, independently moving but electrically connected strips increase the discharge output through charge redistribution in a single ESD, simultaneously improving the discharge frequency under the same wind conditions. Additionally, the MSF-TENG improves usability in urban environments by reducing the weight of each strip, resulting in reduced cut-in speed and operating noise. These performance improvements are achieved through simple internal structural changes, without relying on any external conditions, thereby providing a new strategy for wind-driven TENGs.