The invention discloses a particle velocity distribution arc static sensor array measuring method and a device thereof. The method includes that an arc electrode array is arranged on a pipeline, when electriferous particle passes through the static sensor array, electrode group in each line of the electrode array generates two groups of static signals reflecting gas-solid flow information, the static signals are amplified by a differential amplifying circuit and then are input into a computer by a data acquisition circuit, frequency analysis is carried out on the differential static signals in the computer and peak frequency on spectrum is determined, further the average velocity of gas solid particles in the sensitive space of the electrode group is obtained, and all the electrode groupson the circumference are combined to realize velocity distribution measurement. Compared with single ring and multi-ring static induction filters, the arc static sensor array can realize particle velocity distribution measurement on the section of pipeline and has higher accuracy. The particle velocity arc static sensor array measuring device of the invention comprises a measuring probe, a chargedifferential amplifying circuit, a data acquisition card and a computer.