There is provided a honeycomb structure having a consecutive cell structure and capable of reconciling reduction in pressure loss and improvement in purification ability and a method for manufacturing the honeycomb structure. The honeycomb structure 1 has a plurality of partition walls 2 partitioning a plurality of cells 3 extending in an axial direction. At least a part of continuous partition walls 2 has a curved shape protruding toward outside from the center 4 of a cross-section perpendicular to the axial direction or a curved shape protruding toward the center of the cross-section from outside.