SIM cassette with blocking function

The utility model relates to a SIM cassette with blocking function, including the plastic main part, this cassette still includes cassette bottom plate, cassette curb plate, terminal structural slab and upper cover, cassette bottom plate, terminal structural slab, plastic main part and upper cover from supreme setting gradually down, the cassette curb plate set up the both ends at the cassette bottom plate, the curb plate of upper cover be connected with the cassette curb plate, the cassette bottom plate in be equipped with the shielding layer. Compared with the prior art, the utility model has the advantages of but bidirectional possibility, the PIN that prevents bursting, thickness hang down, have blocking function.