A terminal assembly and connector, the terminal assembly comprises a first terminal component, a second terminal component, at least one metal shielding plate, and a metal housing. The first terminal component comprises a plurality of first signal terminals embedded in the first insulating body. The second terminal component comprises a second insulating body and a plurality of second signal terminals embedded in the second insulating body. The second terminal component is disposed opposite to the first terminal component. The at least one metal shielding plate connects with the first terminal component and the second terminal component. The metal shielding plate is disposed between the two adjacent first signal terminals and the two adjacent second signal terminals. The metal housing covers the first terminal component, the second terminal component and at least one metal shielding plate. The at least one metal shielding plate connects with the metal housing.