Based on the analysis of the historical data of a coal wharf’s construction, we develop and compare different transforming and upgrading schemes, to satisfy the requirement of the systematic upgrading of facilities and ensure normal operation of the power plant. In view of the limited space for upgrading and necessity of matching joints between the new structures and the old ones, a non-standard design speed of conveyance belt is adopted which result in saving cost, reducing power consumption and stabilizing the operation in a safe manner if fitted with the basic conditions; And a deck structure supported on rake large-diameter socketed-in-rock tubular piles is adopted for the extended section of wharf, while a kind of creative structure with strut piers supported on rake socketed-in-rock tubular piles is used for the reinforced section, so as to reduce the settlement and minimize the influence on the original structures and operation on the wharf. This method of wharf upgrading may serve as referencefor other projects of the same nature in the future.