A method for transmitting a radio link control, RLC, layer status report protocol data unit, PDU, comprising: receiving, by a user equipment, configuration information sent by a network device, wherein the configuration information comprises at least one status report PDU format; and generating a status report PDU according to a status report PDU format selected by the user equipment from the at least one status report PDU format, and reporting the status report PDU; characterized in that selecting, by the user equipment, the status report PDU format from the at least one status report PDU format, comprises: selecting, by the user equipment, the status report PDU format from the at least one status report PDU format according to a situation of incorrectly receiving PDUs; wherein when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to a preset threshold value, or when the quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are continuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a range of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are discontinuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a plurality of ranges of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is less than the preset threshold value, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a sequence number of each PDU incorrectly received. receiving, by a user equipment, configuration information sent by a network device, wherein the configuration information comprises at least one status report PDU format; and generating a status report PDU according to a status report PDU format selected by the user equipment from the at least one status report PDU format, and reporting the status report PDU; characterized in that selecting, by the user equipment, the status report PDU format from the at least one status report PDU format, comprises: selecting, by the user equipment, the status report PDU format from the at least one status report PDU format according to a situation of incorrectly receiving PDUs; wherein when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to a preset threshold value, or when the quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are continuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a range of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are discontinuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a plurality of ranges of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is less than the preset threshold value, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a sequence number of each PDU incorrectly received. selecting, by the user equipment, the status report PDU format from the at least one status report PDU format according to a situation of incorrectly receiving PDUs; wherein when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to a preset threshold value, or when the quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are continuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a range of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is greater than or equal to the preset threshold value and sequence numbers of the PDUs incorrectly received are discontinuous, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a plurality of ranges of the sequence numbers of the PDUs incorrectly received; when a quantity of the PDUs incorrectly received by the user equipment is less than the preset threshold value, the selected status report PDU format comprises a maximum sequence number of PDUs successfully received by the user equipment and further comprises a sequence number of each PDU incorrectly received.