Rear supporting structure of catalytic converter

The utility model relates to a rear supporting structure of a catalytic converter, and relates to the technical field of automobile design and manufacturing. The catalyst rear supporting structure comprises an upper metal support and a lower metal support. The lower metal support comprises an interlocking mounting surface and a lower mounting surface, an interlocking opening and a side hole groove are formed in the interlocking mounting surface, and the upper metal support comprises an upper support column body; the upper support column body is arranged in the interlocking opening from the side hole groove and rotates to form an interlocking structure, and the interlocking structure is fixed through a vulcanized rubber block. The rear supporting structure of the catalytic converter is a flexible supporting structure, so that structural strength is guaranteed, meanwhile, enough flexible space is provided, and assembling stress generated when the catalytic converter is assembled and stress generated by thermal