The invention relates to the technical field of air preheater structures, in particular to a tubular air preheater end connection structure which can realize the effect of end connection conveniently, and is convenient to maintain and replace and low in cost. The tubular air preheater end connection structure comprises an air preheater heat exchange pipe and support pipe plates. The tubular air preheater end connection structure is characterized in that gaskets are mounted in gaps between the air preheater heat exchange pipe and the support pipe plates; lock covers arranged at the air preheater heat exchange pipe in a sleeving manner are arranged at the outer sides of the gaskets; through holes are formed in the lock covers, and are internally provided with elastic strips; the sizes of inner rings of the elastic strips are less than the size of the air preheater heat exchange pipe; the edges of the lock covers are clung to the support pipe plates; and the inner sides of the lock covers are clung to the gaskets.