Provided are a conductive sheet structure and a high-speed connector. The conductive sheet includes a conductive sheet, and a plurality of elastic arms are disposed on the conductive sheet with spacings. Each elastic arm includes a connecting section, a tilt section and a contact section which are connected in sequence. The connecting section is fixedly connected to the conductive sheet. The tilt section is tilted relative to the conductive sheet and the tilt angle between the tilt section and the conductive sheet is variable. The contact section is used for contacting with a grounding terminal on a high-speed connector.