A vascular state measurement method comprises: performing a first eddy current induction measurement on a target vessel within a first measurement range to obtain a first signal characteristic difference; adjusting at least one of the starting and ending positions of the first measurement range to obtain a second measurement range, and performing a second eddy current induction measurement on the target blood vessel within the second measurement range to obtain a second signal characteristic difference; and selecting a proper measurement range or estimating a stenosis or sclerosis location of the target vessel according to the first signal characteristic difference and the second signal characteristic difference. |