The invention discloses a supporting tubular membrane component, which comprises a to-be-filtered liquor inlet end cover, a shell and a to-be-filtered liquor outlet end cover which are orderly and fixedly connected. Tubular membranes are arranged in parallel in the shell; the shell is provided with a filtered liquor outlet; supporting tubes in a number corresponding to that of the tubular membranes are also arranged in the shell in a way that one tubular membrane is arranged in one supporting tube; the two ends of the shell are provided with a fixing device respectively; and the fixing devicecomprises a cover plate, a disk chuck and a pressure plate. The supporting tubular membrane component is strong in universality, namely, the supporting tubular membrane component can be used under the condition of high pressure, and also is long is service life, simple in structure and convenient in assembly, disassembly and maintenance.