A connecting structure includes a housing which is configured to be inserted into a cover, and a terminal which is accommodated in the housing and configured to hold an electronic device. The housing allows the electronic device to be inserted from an outside of the housing into the housing in a state where the terminal is accommodated in the housing. The cover is configured to come in contact with the electronic device in a state where a part of the electronic device is inserted to the terminal. The cover is configured to allow the housing to be inserted into the cover in a state where whole part of the electronic device is inserted into the housing to be held at a normal position by the terminal. The cover has an abutting face preventing the electronic device from slipping out from the housing in a state where the housing is inserted into the cover.