The invention discloses a low-carbon alkane dehydrogenation catalyst regeneration method. The method comprises the following steps: (1) a deactivated catalyst is treated with CO gas; (2) the deactivated catalyst treated in the step (1) is treated in a mixed atmosphere comprising low-carbon oxygen-containing hydrocarbon and HCl; (3) the deactivated catalyst treated in the step (2) is treated in a mixed atmosphere comprising low-carbon oxygen-containing hydrocarbon; and (4) the deactivated catalyst treated in the step (3) is subjected to a charcoaling treatment in mixed gas comprising low-concentration oxygen, such that a regenerated catalyst is obtained. With the low-carbon alkane dehydrogenation catalyst regeneration method provided by the invention, problems in existing low-carbon alkane dehydrogenation catalyst regeneration processes are well solved. The performances of the regenerated catalyst can be restored to the level of fresh agent.