The present disclosure provides a method for receiving system information, a method for sending system information, and devices and storage media thereof. The method for receiving system information, applied to a terminal, includes: sending, by the terminal, an SI request to a base station on a first BWP, where the SI request is used to request to obtain system information; receiving, by the terminal, first switching information sent by the base station, where the first switching information is used to instruct the terminal to switch to a second BWP to receive the system information; receiving, by the terminal, the system information on the second BWP; and after successfully receiving the system information, sending, by the terminal, first indication information to the base station, where the first indication information is used to indicate that the terminal has successfully received the system information.