A method for receiving system information carried out by a terminal, comprising: receiving (302, 401) first system information broadcasted by a base station using a beamforming technology, the first system information being used by the base station and a terminal in a random access process; sending (303, 402), in the random access process, a preamble to the base station, wherein the preamble is associated with an index number; receiving (306, 403) a random access response message sent by the base station, wherein the random access response comprises at least a first identifier of the terminal, an index number of a preamble, time adjustment information used for uplink synchronization, and an initial uplink resource indicator, wherein the first identifier of the terminal is a temporary Cell Radio Network Temporary Identifier, C-RNTI, and is used to instruct the terminal to send a random access message II, the random access message III being a msg3; when determining that the index number of a preamble in the random response message is the same as the index number of the preamble sent to the base station, sending (307, 404), in the random access process, the random access message III carrying a system information request and the first identifier of the terminal to the base station, wherein the system information request is used to request second system information; receiving (310, 405) a random access message IV sent by the base station, wherein the random access message IV is a msg4 and comprises at least a second identifier of a terminal, therein the second identifier is a permanent C-RNTI; and when the second identifier of a terminal in the random access message IV is the same as the first identifier of the terminal in the random access message III, determining that the base station is accessible, reading the second system information from the random access message IV and converting the temporary C-RNTI in the random access response message to the permanent C-RNTI and ending the random access process, and when the second identifier in the random access message IV is different from the first identifier in the random access message III sent by the terminal, determining that the base station is not accessible, repeating the random access process until a maximum number of times is reached and then ending the random access process, wherein the base station is a 5G Node B, NB, transmission between the base station and the terminal is performed by using a high frequency band in a 5G network, and the first system information is different from the second system information. receiving (302, 401) first system information broadcasted by a base station using a beamforming technology, the first system information being used by the base station and a terminal in a random access process; sending (303, 402), in the random access process, a preamble to the base station, wherein the preamble is associated with an index number; receiving (306, 403) a random access response message sent by the base station, wherein the random access response comprises at least a first identifier of the terminal, an index number of a preamble, time adjustment information used for uplink synchronization, and an initial uplink resource indicator, wherein the first identifier of the terminal is a temporary Cell Radio Network Temporary Identifier, C-RNTI, and is used to instruct the terminal to send a random access message II, the random access message III being a msg3; when determining that the index number of a preamble in the random response message is the same as the index number of the preamble sent to the base station, sending (307, 404), in the random access process, the random access message III carrying a system information request and the first identifier of the terminal to the base station, wherein the system information request is used to request second system information; receiving (310, 405) a random access message IV sent by the base station, wherein the random access message IV is a msg4 and comprises at least a second identifier of a terminal, therein the second identifier is a permanent C-RNTI; and when the second identifier of a terminal in the random access message IV is the same as the first identifier of the terminal in the random access message III, determining that the base station is accessible, reading the second system information from the random access message IV and converting the temporary C-RNTI in the random access response message to the permanent C-RNTI and ending the random access process, and when the second identifier in the random access message IV is different from the first identifier in the random access message III sent by the terminal, determining that the base station is not accessible, repeating the random access process until a maximum number of times is reached and then ending the random access process, wherein the base station is a 5G Node B, NB, transmission between the base station and the terminal is performed by using a high frequency band in a 5G network, and the first system information is different from the second system information.