The invention discloses a distributed channel estimation method, which belongs to the field of digital communication. The method comprises the following steps: 1) intermittently sending a training sequence by a sending end; 2) converting a received time domain training sequence into a frequency domain training sequence by a receiving end; 3) removing modulation information from the frequency domain training sequence; and 4) performing joint estimation on the module of the frequency domain training sequence after removing the modulation information to obtain the module responding to a frequency domain channel, and performing joint estimation on the phase of the frequency domain training sequence after removing the modulation information to obtain the phase responding to the frequency domain channel. Compared with the prior art, by the method, not only the complexity of the channel estimation is greatly simplified, but also the estimation result has high reliability, stability and precision.