Abstract: The present disclosure provides a TiCB—Al seed alloy, a manufacturing method thereof and a heritable aluminum alloy. The TiCB—Al seed alloy includes an Al matrix and TiCB@TiBC seed crystals dispersed on the Al matrix, wherein the TiCB@TiBC seed crystal comprises a core part and a shell part, the core part contains B-doped TiCB, and the shell part covers at least a part of the core part and contains a TiBC ternary phase, wherein the B-doped TiCB refers to a TiCB phase formed by B atoms occupying C vacancies in a TiCx crystal, and the TiBC ternary phase refers to a ternary phase composed of Ti, B and C, wherein x<1.