The invention relates to a gene relevant to papillary thyroid tumors and an application thereof. According to the base sequence of the gene, real-time and quantitative PCR (Polymerase Chain Reaction) primers are designed and synthesized； the expression level of long-chain non-coding RNA (Ribonucleic Acid) transcribed by the gene is detected in a papillary thyroid carcinoma clinical case specimen； the result shows remarkable reducing of the expression level of the long-chain non-coding RNA in papillary thyroid tumor tissues and the long-chain non-coding RNA of the gene silencing can remarkably promote the growth of thyroid cancer cells. The gene relevant to the papillary thyroid tumors is expected to prepare preparations used in papillary thyroid carcinoma auxiliary diagnosis, gene therapy, curative effect prediction or prognosis.
