The invention discloses a connection terminal box and a connector. A communication interface comprising at least four groups of interfaces is connected with a communication adapter, a current and voltage connection end transmits detection signals transmitted by the communication adapter to an electric energy meter through a connection terminal box body, and data of the electric energy meter are acquired. The signals needing to be detected can be acquired without manually disconnecting and connecting wires when different detection signals are transmitted by the communication adapter in the signal detection process, strong electric signals and weak electric signals of the electric energy meter are simultaneously connected, and the connection terminal box solves the problem of low working efficiency caused by manually connecting the wires when positive and negative active and reactive electric pulse signals of the electric energy meter are read and errors are checked.