A test paper box and a smart toilet containing same are provided. The test paper box has a support and a housing arranged at the outside of the support. The support has a base and an elongated cavity arranged at the base for storing test paper. The base is provided with a through hole arranged at a location corresponding to a bottom surface of the elongated cavity. A paper-receiving slot is arranged below the through hole. The paper-receiving slot is fixed to the bottom of the base to receive the bottommost piece of test paper exposed from the elongated cavity, and the paper-receiving slot is provided with a paper outlet. The test paper box can be attached and detached conveniently, delivers test paper smoothly, can be replaced easily, has low costs, and is suitable for smart toilets.