Abstract: A multi-functional calendar structure includes a calendar made up of a set of upper and lower layers wherein the upper layer has week elements, day elements, and month elements respectively marked at the front face thereon, and a plurality of empty elements for recording important occasions or favorable/forbidden events in the month sequentially arranged at the bottom of the front face thereon. Each of the day and empty elements is provided with a set of top and bottom dotted tearing lines, a set of transversely U-shaped left and right cut areas disposed at both adjacent edges of the top/bottom dotted tearing lines thereof, an oblique cut opening defining the lower section of the left cut area thereof, and an adhesive portion properly coated at the reverse face thereon and limited within the left/right cut areas thereof. The lower layer is also provided with identical day and empty elements in corresponding positions relative to that of the upper layer thereof.