A performance data management method, characterized by comprising: establishing, by an upper-level network management system, a performance data dimension comprising a resource type dimension, a performance object dimension and a performance index dimension, acquiring the performance data information configured for determining a resource type, a performance object and a performance index, and establishing and installing a performance data service packet based on the performance data information; parsing the performance data service packet to obtain an instance of the performance data dimension, and adding the instance of the performance data dimension into a system model; and converting the instance of the performance data dimension in the system model into a multiple-version generic performance object and a multiple-vendor generic performance object according to a performance object conversion rule, and outputting a data view; wherein the establishing a resource type dimension comprises: the resource type dimension comprises: specific resource type dimension d res-type and generic resource type dimension d c-res-type; wherein the specific resource type dimension is established by establishing d res-type = (Private Network, Vendor, Resource Type Name) T; and the generic resource type dimension is established by d c-res-type = (Private Network, 0, Resource Type Name) T; the establishing a performance object dimension comprises: establishing a specific performance object dimension by d po = (Private Network, Vendor, Resource Type, Version, Performance Object Name, Grain Size) T; establishing a multiple-version generic performance object dimension by d po-multi-version = (Private Network, Vendor, Resource Type, 0, Performance Object Name, Grain Size) T; and establishing a multiple-vendor generic performance object dimension by d po-multi-vendor = (Private Network, 0, Resource Type, 0, Performance Object Name, Grain Size) T; and the establishing a performance index dimension comprises: establishing a specific performance index dimension by d pi = (Private Network, Vendor, Resource Type, Version, Performance Object Name, Grain Size, Performance Index Name) T; establishing a multiple-version performance index dimension by d pi-multi-version = (Private Network, Vendor, Resource Type, 0, Performance Object Name, Grain Size, Performance Index Name) T; and establishing a multiple-vendor performance index dimension by d pi-multi-version = (Private Network, 0, Resource Type, 0, Performance Object Name, Grain Size, Performance Index Name) T. establishing, by an upper-level network management system, a performance data dimension comprising a resource type dimension, a performance object dimension and a performance index dimension, acquiring the performance data information configured for determining a resource type, a performance object and a performance index, and establishing and installing a performance data service packet based on the performance data information; parsing the performance data service packet to obtain an instance of the performance data dimension, and adding the instance of the performance data dimension into a system model; and converting the instance of the performance data dimension in the system model into a multiple-version generic performance object and a multiple-vendor generic performance object according to a performance object conversion rule, and outputting a data view; the resource type dimension comprises: specific resource type dimension d res-type and generic resource type dimension d c-res-type; wherein the specific resource type dimension is established by establishing d res-type = (Private Network, Vendor, Resource Type Name) T; and the generic resource type dimension is established by d c-res-type = (Private Network, 0, Resource Type Name) T; establishing a specific performance object dimension by d po = (Private Network, Vendor, Resource Type, Version, Performance Object Name, Grain Size) T; establishing a multiple-version generic performance object dimension by d po-multi-version = (Private Network, Vendor, Resource Type, 0, Performance Object Name, Grain Size) T; and establishing a multiple-vendor generic performance object dimension by d po-multi-vendor = (Private Network, 0, Resource Type, 0, Performance Object Name, Grain Size) T; and establishing a specific performance index dimension by d pi = (Private Network, Vendor, Resource Type, Version, Performance Object Name, Grain Size, Performance Index Name) T; establishing a multiple-version performance index dimension by d pi-multi-version = (Private Network, Vendor, Resource Type, 0, Performance Object Name, Grain Size, Performance Index Name) T; and establishing a multiple-vendor performance index dimension by d pi-multi-version = (Private Network, 0, Resource Type, 0, Performance Object Name, Grain Size, Performance Index Name) T.