A processing method for source data of a distributed storage system, comprising: acquiring a first schema structure of target data and a second schema structure of source data; and processing the source data into structural data of the first schema structure according to the first schema structure and the second schema structure; wherein, processing the source data into structural data of the first schema structure according to the first schema structure and the second schema structure comprises: judging whether the first schema structure and the second schema structure are consistent; processing the source data into the structural data according to the first schema structure or the second schema structure when a judging result is that the first schema structure and the second schema structure are consistent; and determining differences between the first schema structure and the second schema structure, and processing the source data into structural data according to the first schema structure, the second schema structure and the differences when the judging result is that the first schema structure and the second schema structure are inconsistent; characterized in that, judging whether the first schema structure and the second schema structure are consistent comprises: comparing a first identification number of the first schema structure with a second identification number of the second schema structure, wherein the first schema structure and the second schema structure are consistent if the first identification number is consistent with the second identification number; the first schema structure and the second schema structure are inconsistent if the first identification number and the second identification number are inconsistent, and the first identification number and the second identification number are uniformly assigned by a distributed storage schema management server. acquiring a first schema structure of target data and a second schema structure of source data; and processing the source data into structural data of the first schema structure according to the first schema structure and the second schema structure; wherein, processing the source data into structural data of the first schema structure according to the first schema structure and the second schema structure comprises: judging whether the first schema structure and the second schema structure are consistent; processing the source data into the structural data according to the first schema structure or the second schema structure when a judging result is that the first schema structure and the second schema structure are consistent; and determining differences between the first schema structure and the second schema structure, and processing the source data into structural data according to the first schema structure, the second schema structure and the differences when the judging result is that the first schema structure and the second schema structure are inconsistent; judging whether the first schema structure and the second schema structure are consistent; processing the source data into the structural data according to the first schema structure or the second schema structure when a judging result is that the first schema structure and the second schema structure are consistent; and determining differences between the first schema structure and the second schema structure, and processing the source data into structural data according to the first schema structure, the second schema structure and the differences when the judging result is that the first schema structure and the second schema structure are inconsistent; characterized in that, judging whether the first schema structure and the second schema structure are consistent comprises: comparing a first identification number of the first schema structure with a second identification number of the second schema structure, wherein the first schema structure and the second schema structure are consistent if the first identification number is consistent with the second identification number; the first schema structure and the second schema structure are inconsistent if the first identification number and the second identification number are inconsistent, and the first identification number and the second identification number are uniformly assigned by a distributed storage schema management server. comparing a first identification number of the first schema structure with a second identification number of the second schema structure, wherein the first schema structure and the second schema structure are consistent if the first identification number is consistent with the second identification number; the first schema structure and the second schema structure are inconsistent if the first identification number and the second identification number are inconsistent, and the first identification number and the second identification number are uniformly assigned by a distributed storage schema management server.