A sounding reference signal transmission method, comprising: selecting, based on a sequence number n SRS of a quantity of transmissions of a sounding reference signal, SRS, and a quantity Λ of antenna groups, an antenna group whose sequence number is a ( n SRS) from the Λ antenna groups, so that in a process of sending the SRS for 2 Λ times, the SRS is sent through each of the Λ antenna groups at least once, wherein n SRS is an integer greater than or equal to 0, and Λ is a positive integer greater than or equal to 3; and sending, during the n SRS th SRS transmission, the SRS through antenna ports comprised in the antenna group whose sequence number is a ( n SRS); characterized in that the selecting, based on a sequence number n SRS of a quantity of transmissions of a sounding reference signal SRS and a quantity Λ of antenna groups, an antenna group whose sequence number is a ( n SRS) from the Λ antenna groups comprises: determining, according to the following formula, the sequence number a ( n SRS) of the antenna group for sending the SRS: a n SRS = n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ wherein α = { 1 when Κ is an integer multiple of Λ 0 in another case, wherein K is the number of SRS transmission sub-bandwidths comprised in a frequency hopping bandwidth for the SRS, and wherein K is a positive integer greater than 0, and β = { 1 when Κ is an integer multiple of Λ 2 0 in another case; and n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ is used to represent a remainder obtained by dividing n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ by Λ. selecting, based on a sequence number n SRS of a quantity of transmissions of a sounding reference signal, SRS, and a quantity Λ of antenna groups, an antenna group whose sequence number is a ( n SRS) from the Λ antenna groups, so that in a process of sending the SRS for 2 Λ times, the SRS is sent through each of the Λ antenna groups at least once, wherein n SRS is an integer greater than or equal to 0, and Λ is a positive integer greater than or equal to 3; and sending, during the n SRS th SRS transmission, the SRS through antenna ports comprised in the antenna group whose sequence number is a ( n SRS); characterized in that the selecting, based on a sequence number n SRS of a quantity of transmissions of a sounding reference signal SRS and a quantity Λ of antenna groups, an antenna group whose sequence number is a ( n SRS) from the Λ antenna groups comprises: determining, according to the following formula, the sequence number a ( n SRS) of the antenna group for sending the SRS: a n SRS = n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ wherein α = { 1 when Κ is an integer multiple of Λ 0 in another case, wherein K is the number of SRS transmission sub-bandwidths comprised in a frequency hopping bandwidth for the SRS, and wherein K is a positive integer greater than 0, and β = { 1 when Κ is an integer multiple of Λ 2 0 in another case; and n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ is used to represent a remainder obtained by dividing n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ by Λ. determining, according to the following formula, the sequence number a ( n SRS) of the antenna group for sending the SRS: a n SRS = n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ wherein α = { 1 when Κ is an integer multiple of Λ 0 in another case, wherein K is the number of SRS transmission sub-bandwidths comprised in a frequency hopping bandwidth for the SRS, and wherein K is a positive integer greater than 0, and β = { 1 when Κ is an integer multiple of Λ 2 0 in another case; and n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ mod Λ is used to represent a remainder obtained by dividing n SRS + α ⌊ n SRS / Λ ⌋ + β ⌊ n SRS / K ⌋ by Λ.