The invention relates to a suspension bridge brick for a combined type tin bath top cover brick structure, which comprises a hot side brick of suspension bridge brick; the main body of the hot side brick is a reversed T-shaped brick body; the central protruding part of the reversed T-shaped brick body is a suspension upright; a suspension structure for matching with a suspension piece is arranged on the upper end part of the suspension upright; suspension bridge brick insulating bricks are respectively arranged on table surfaces extending to left and right two ends from the suspension upright at the bottom of the hot side brick of suspension bridge brick; the insulating bricks of the suspension bridge brick are connected with the suspension upright side by side; a supporting structure for supporting blocking bricks is arranged on the front side and/or the back side at the bottom of the hot side brick of the suspension bridge brick; and the left and right end faces at the bottom of the hot side brick of the suspension bridge brick are respectively provided with joint interfaces. As the suspension structure is adjacent to a cold side of the tin bath top cover brick structure, the suspension piece made of ordinary metal or lower-temperature heat-resisting alloy metal can reduce the total weight of the brick structure with good thermal insulation. The invention further relates to the hot side brick of the suspension bridge brick.