The invention discloses a full-channel data acquirer which comprises a wireless data acquiring module and a data managing module, wherein the wireless data acquiring module comprises N wireless data acquiring submodules which are in charge of monitoring and acquiring wireless data of all 16 channels in a 2.4GHz ISM frequency band wireless network, N is a natural number of not less than 16, and the data managing module is used for preprocessing the wireless data acquired by the wireless data acquiring module. Because the full-channel data acquirer comprises at least 16 wireless data acquiring submodules, when the full-channel data acquirer is implemented, the 16 wireless data acquiring submodules can be specifically adopted for acquiring the wireless data of the 16 channels in the wireless network in a one-to-one manner, and thus the data of the 16 channels is simultaneously acquired, the problem that the existing data acquirer only monitors one channel in the same time is solved, and further inconvenience caused by capability of only monitoring the one channel is overcome.