Abstract: Improving exciton separation and reducing electron-hole recombination is key for organic solar cells (OSCs) to achieve high performance because of the limited exciton diffusion length in the normally employed active layers. Thus, a simple strategy of bridging for electrons by adding anatase titanium dioxide nanoparticles (TiO₂ NPs) in the active layer is proposed to enhance the performance of OSCs. It was found that ~48.8% increase in power conversion efficiency (PCE), i. e., from 2.11% to 3.14% can be achieved after adding an appropriate amount (1.0 wt%) of anatase TiO₂ NPs. Further investigation confirms that the PCE improvement is mainly attributed to the enhanced exciton separation and reduced electron-hole recombination benefiting from the electron bridge effect played by the added anatase TiO₂ NPs.