A RF pass-through connector comprises at least a spring-loaded terminal comprised of a rod member and a sleeve member resiliently telescopically formed in a housing and adapted to be correspondingly contacted with a signal terminal formed in a socket and a receptacle cavity in the socket to be electrically connected with a grounding loop formed in a circuit board fixed in an electronic device, whereby upon a connection of the RF pass-through connector with the socket of the electronic device, a reliable, stable and efficient signal communication or transmission may be obtained through the terminals.