The invention relates to the technical field of
water pollution detection, in particular to a
water quality pollution multi-
dimensional analysis system which comprises the following steps: synchronously measuring an
ultraviolet-visible absorption spectrum of a
water sample to be detected and
scattered light intensity in an orthogonal direction, and deducting spectrum baseline interference caused by suspended particulate matters in the
water sample through a
correction algorithm; the interferents in the
water sample are selectively converted and degraded by applying a programmed potential to the inflowing water sample to be detected; the reverse pulse is periodically applied, so that the online regeneration function of the
electrode is realized; analyzing the
spectral data by adopting a multivariate
correction algorithm, and calculating the concentration of the target
pollutant; the calculation residual error of the multivariate
correction algorithm is analyzed, new interference and
system performance drift of current measurement are diagnosed, and a corresponding
system state code is generated; and responding to the system state code, automatically starting and carrying out state checking and multi-point calibration on the instrument, and using a
calibration result to update the analysis model. Through multi-dimensional
perception and closed-loop operation, accuracy and reliability of
water quality monitoring are guaranteed.