<p>This paper proposes a quantum linkable threshold ring signature scheme that integrates quantum cryptography with threshold mechanisms to achieve quantum attack resistance, unconditional anonymity, and multi-party collaborative signing. The scheme employs Shamir’s threshold secret sharing technique, maps classical messages and parameters into approximately orthogonal quantum states via quantum one-way functions, and generates quantum signatures using quantum rotation gates. A dual-protection mechanism combining classical information-theoretic security and randomly rotated quantum states is established. Compared to existing quantum ring signature schemes, the proposed approach effectively prevents single-point leakage and collusion attacks through threshold techniques, uses linkable tags to verify signature source consistency, and resists replay attacks. Security analysis demonstrates that the scheme satisfies unforgeability and anonymity under the quantum random oracle model (QROM).</p>