A method for filtering channel quality indicator comprising: acquiring a current channel quality indicator reported by a user equipment in a current scheduling period (201, 301); acquiring an average channel quality indicator of a channel quality indicator sequence (202, 302), wherein, said channel quality indicator sequence comprises at least two channel quality indicators reported by the user equipment before said current scheduling period; determining an expected channel quality indicator from said current channel quality indicator and the average channel quality indicator according to variation characteristic of said channel quality indicator sequence; and determining the channel quality indicator used in the current scheduling period according to the expected channel quality indicator; wherein the method is characterized in that the step of determining the expected channel quality indicator comprises: determining monotonicity of said channel quality indicator sequence; and when said channel quality indicator sequence is monotonically increasing according to time sequence, determining the larger value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is monotonically decreasing according to the time sequence, determining the smaller value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is neither monotonically increasing nor monotonically decreasing according to the time sequence, determining said average channel quality indicator as the expected channel quality indicator. acquiring a current channel quality indicator reported by a user equipment in a current scheduling period (201, 301); acquiring an average channel quality indicator of a channel quality indicator sequence (202, 302), wherein, said channel quality indicator sequence comprises at least two channel quality indicators reported by the user equipment before said current scheduling period; determining an expected channel quality indicator from said current channel quality indicator and the average channel quality indicator according to variation characteristic of said channel quality indicator sequence; and determining the channel quality indicator used in the current scheduling period according to the expected channel quality indicator; wherein the method is characterized in that the step of determining the expected channel quality indicator comprises: determining monotonicity of said channel quality indicator sequence; and when said channel quality indicator sequence is monotonically increasing according to time sequence, determining the larger value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is monotonically decreasing according to the time sequence, determining the smaller value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is neither monotonically increasing nor monotonically decreasing according to the time sequence, determining said average channel quality indicator as the expected channel quality indicator. determining monotonicity of said channel quality indicator sequence; and when said channel quality indicator sequence is monotonically increasing according to time sequence, determining the larger value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is monotonically decreasing according to the time sequence, determining the smaller value in said current channel quality indicator and said average channel quality indicator as the expected channel quality indicator; when said channel quality indicator sequence is neither monotonically increasing nor monotonically decreasing according to the time sequence, determining said average channel quality indicator as the expected channel quality indicator.