The invention discloses an intelligent information receiving and sending method and system special for electric power with the encryption function. The method is characterized by comprising the steps that an application server (1) is responsible for processing information required to be transmitted, and plaintext messages are generated, and encrypted; an information receiving and sending device (2) is used for conducting encryption processing on the encrypted messages again, and the messages are transmitted to a message center (3) of a communication operator; the message center (3) of the communication operator is responsible for storing and forwarding the messages to an intelligent mobile terminal (4) belonging to the message center; the intelligent mobile terminal (4) is responsible for receiving the messages forwarded by the message center (3), monitoring the messages transmitted by the system, and conducting encryption processing, so that a user can check and read the messages; the intelligent mobile terminal (4) can also transmit the encrypted messages to the application server (1). The method ensures the safety of information transmission, the whole process is independently executed, the information receiving and sending cost is low, and the user coverage is wide.