The present invention relates to a composition for alleviating or treating pain. A pharmaceutical composition of the present invention contains two or more selected from the group consisting of GAD, IL-10, and a gene encoding GDNF. The pharmaceutical composition of the present invention exhibits an excellent analgesic effect at a dosage lower than that of individual administration since genes are coadministered, and thus conventional side effects and toxicity can be reduced. Therefore, the pharmaceutical composition of the present invention can be useful in alleviating or treating pain.
