An encryption card comprising: a trusted computing module including a trusted platform control module TPCM or a trusted platform module TPM; a programmable logic device that is connected to the trusted computing module through a conductive circuit, and communicates with the trusted computing module through the conductive circuit; and a communication interface that is connected to the trusted computing module and the programmable logic device, and is configured to provide an interface for connecting to an external device of the encryption card; wherein the trusted computing module, the programmable logic device, and the communication interface are disposed on a printed circuit board PCB, and the conductive circuit comprises an electrical lead disposed in the PCB; wherein the trusted computing module (102; 400) comprises: a first primary computing area that is configured to perform operation processes other than cryptographic operation processes; a first cryptographic computing area that is connected to the first primary computing area, is provided with an engine of at least one cryptographic algorithm, and performs a cryptographic operation process using the engine; and a first storage area that is connected to the first primary computing area and the first cryptographic computing area and is configured to store data; and wherein the first storage area further comprises a storage area configured to store cryptographic operation firmware that is used by the programmable logic device. a trusted computing module including a trusted platform control module TPCM or a trusted platform module TPM; a programmable logic device that is connected to the trusted computing module through a conductive circuit, and communicates with the trusted computing module through the conductive circuit; and a communication interface that is connected to the trusted computing module and the programmable logic device, and is configured to provide an interface for connecting to an external device of the encryption card; wherein the trusted computing module, the programmable logic device, and the communication interface are disposed on a printed circuit board PCB, and the conductive circuit comprises an electrical lead disposed in the PCB; wherein the trusted computing module (102; 400) comprises: a first primary computing area that is configured to perform operation processes other than cryptographic operation processes; a first cryptographic computing area that is connected to the first primary computing area, is provided with an engine of at least one cryptographic algorithm, and performs a cryptographic operation process using the engine; and a first storage area that is connected to the first primary computing area and the first cryptographic computing area and is configured to store data; and wherein the first storage area further comprises a storage area configured to store cryptographic operation firmware that is used by the programmable logic device. a first primary computing area that is configured to perform operation processes other than cryptographic operation processes; a first cryptographic computing area that is connected to the first primary computing area, is provided with an engine of at least one cryptographic algorithm, and performs a cryptographic operation process using the engine; and a first storage area that is connected to the first primary computing area and the first cryptographic computing area and is configured to store data; and wherein the first storage area further comprises a storage area configured to store cryptographic operation firmware that is used by the programmable logic device.