  The extraction system of CSNS mainly consists of two kinds of magnets: eight
kickers and one lambertson magnet. In this paper, firstly, the magnetic test
results of the eight kickers were introduced and then the filed uniformity and
magnetizing relationship of the kickers were given. Secondly, during the beam
commissioning in the future, in order to obtain more accurate magnetizing
relationship, a new method to measure the magnetizing coefficients of the
kickers by the real extraction beam was given and the data analysis would also
be processed.
