The embodiment of the invention discloses a data loading method and system and a data processing method and system. The data loading method comprises the following steps of: establishing a parallel distributed fault-tolerant file system data node on physical equipment in which raw data are, and dividing file tape zones on the data node for the raw data; and loading metadata information of the raw data on the data node onto a name node of the parallel distributed fault-tolerant file system through the physical equipment in which the raw data are, wherein the metadata information comprises names of the raw data and file tape zone information. According to the invention, the network transmission resources can be saved.