Flexible neural electrodes are recognized as an optimal solution for the long-term and stable acquisition of neural signals, thanks to their exceptional biocompatibility and mechanical compatibility with brain tissue. In contrast to traditional rigid electrodes, these flexible probes can markedly diminish brain tissue damage, mitigate inflammatory responses, and extend their functional lifespan. Nevertheless, their low stiffness presents a significant challenge, as it hinders their ability to penetrate brain tissue without additional support, thereby impeding their widespread adoption.