The tableware used by tuberculosis patients is not contagious, or the probability of contagion is very low. Tuberculosis is an infectious disease of the respiratory system caused by Mycobacterium tuberculosis infection, belongs to the legal category B infectious diseases, the source of infection is the active period of tuberculosis patients, refers to sputum-positive tuberculosis patients, its main transmission route through the respiratory tract through droplet transmission, a very small number of contact or through the digestive tract transmission. Whether the tableware used by a TB patient is infectious depends on three factors: 1) whether the tableware in contact has a sufficient amount of Mycobacterium tuberculosis and virulence; 2) the appropriate transmission route, such as TB being ejected into the gastrointestinal tract, not completely killed by stomach acid or adhering Mycobacterium tuberculosis floating in the air and being inhaled into the lungs at the right time for transmission; 3) whether the population in contact is a susceptible population. People with normal immunity will not be fully infected with tuberculosis even if they are exposed to a small amount of Mycobacterium tuberculosis. The contagiousness of tableware used by TB patients is very low.