A mounting structure of an electronic component includes: a bump electrode included in the electronic component, the bump electrode having an internal resin as a core and a conductive film covering a surface of the internal resin, and elastically deforming so as to follow a shape of at least one corner of a terminal so that the conductive film makes direct conductive contact with at least part of a top surface of the terminal and at least part of a surface along a thickness direction of the terminal; a substrate having the terminal and the electronic component that is mounted on the substrate; and a holding unit provided to the substrate and the electronic component so as to hold a state in which the bump electrode electrically deformed makes conductive contact with the terminal.