A cascading board, a solid state drive (SSD) shared remote access system and method relate to the communications field and used to perform shared remote access to an SSD. One end of the cascading board is coupled to a remote direct memory access (RDMA) network, and another end is coupled to an SSD. The cascading board includes an access processing apparatus and a processor coupled to the access processing apparatus. The processor is configured to initialize the access processing apparatus and the SSD. The access processing apparatus is configured to implement RDMA to the SSD when receiving an access command from the RDMA network.