A method of receiving system information, SI, comprising: receiving, by a terminal, an SI change notification transmitted by a first network-side equipment; and receiving, by the terminal, SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method is characterized in that after receiving the change notification and prior to the receiving, by the terminal, the SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method further comprises: receiving, by the terminal, a scheduling indication message transmitted by the first network-side equipment, wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment; determining, by the terminal, whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal, the own demand of the terminal referring to a function to be performed subsequently by the terminal; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal, transmitting, by the terminal, a first SI request for SI corresponding to the SI change notification to the first network-side equipment. receiving, by a terminal, an SI change notification transmitted by a first network-side equipment; and receiving, by the terminal, SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method is characterized in that after receiving the change notification and prior to the receiving, by the terminal, the SI transmitted by the first network-side equipment and corresponding to the SI change notification, the method further comprises: receiving, by the terminal, a scheduling indication message transmitted by the first network-side equipment, wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment; determining, by the terminal, whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal, the own demand of the terminal referring to a function to be performed subsequently by the terminal; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal, transmitting, by the terminal, a first SI request for SI corresponding to the SI change notification to the first network-side equipment. receiving, by the terminal, a scheduling indication message transmitted by the first network-side equipment, wherein the scheduling indication message is configured to indicate SI that is being broadcast by the first network-side equipment; determining, by the terminal, whether the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message comprises SI that is according to its own demand of the terminal, the own demand of the terminal referring to a function to be performed subsequently by the terminal; and when the SI that is being broadcast by the first network-side equipment which is indicated by the scheduling indication message doesn't comprise the SI that is according to its own demand of the terminal, transmitting, by the terminal, a first SI request for SI corresponding to the SI change notification to the first network-side equipment.