The thin-walled reinforced concrete-filled steel tube composite overhead-vertical structure,as a new type of wharf structure,is applied to practical engineering.However,most of the composite members are in eccentric compression state.At present,there are few researches about the eccentric compressive bearing capacity of thin-walled steel sheath-reinforced concrete composite structures applied to wharf structures,and the final conclusion is still unknown.We make an experiment of the bearing capacity of thin-walled steel tube-reinforced concrete columns under unidirectional eccentric compression,obtain the load-strain curves by failure state and test data of each specimen,and analyze the failure mechanism.The results show that the increase of wall thickness and the decrease of eccentricity have a direct impact on the improvement of bearing capacity of the structure,which can provide reference for the structure design in practical engineering.