In order to enhance data access efficiency between front-end nodes of Internet of things and edge computing applications, a novel RZCFS(remote zero-copy file system) was proposed. The zero-copy data transmission framework based on generic network interface card was realized without special hardware. The random-access character of non-volatile memory was fully utilized by RZCFS to reduce data caches and copies, which yields a significant throughput improvement for data access. A buffer pool was implemented, the traditional network stack and storage stack were simplified and converged to shorten the file access path, which can eliminate software overhead and reduce data access latency. As a result, RZCFS provides the low-latency and high-bandwidth remote data access. Simulation results show that it achieves 42.26%~99.19% latency reductions for traditional NFS (network file system). The throughput of fine-grained access can reach 1297 times faster than those of NFS. The RZCFS significantly reduces the processor cycles and cache misses.