To make a connecting structure of optical connectors capable of constantly and stably keeping optical connector plugs connected in a laterally aligned state through an optical connector clip, the structure includes boots formed to have fitted parts in an annular groove shape or a ringlike projection shape on an outer peripheries thereof; and a clip body including a plurality of boot inserting parts, which are adjacently provided and have fitting parts in a ringlike projection shape or an annular groove shape on an inner peripheries thereof, so as to fit the fitting parts to the fitted parts of the boots, wherein both side faces of the clip body are formed to have slit parts communicating with the boot inserting parts so as to be deformed in an expanding direction.