The invention discloses an anode sealing structure of a sodium-sulfur cell in the field of chemical energy storage. The anode sealing structure comprises an electrolyte ceramic tube and a housing, wherein a ceramic insulated ring protruding outwards in a radial manner is fixed on the top surface of the electrolyte ceramic tube; the anode sealing structure also comprises an L-shaped metal ring, a slotted metal ring and a top metal ring; the top surface of a horizontal section of the L-shaped metal ring is fixed together with the bottom surface of the ceramic insulated ring; the inner side of a vertical section of the L-shaped metal ring is fixed together with the outer side of the ceramic insulated ring; the outer side is separated from the inner side of the housing; the top surface is higher than that of the ceramic insulated ring; the wall of an inner ring groove of the slotted metal ring is higher than that of an outer ring groove; the outer side of the outer ring groove is fixed together with the inner side of the vertical section of the L-shaped metal ring; the top surface is equal to that of the vertical section of the L-shaped metal ring in height; the top metal ring is connected with the outer side of the wall of the inner ring groove of the slotted metal ring and the inner side of the housing; an annular slot is arranged at the top surface of the top metal ring. The anode sealing structure has the technical effects that the stress on the electrolyte ceramic tube is effectively dispersed in the process of cooling the sodium-sulfur cell.