The present invention belongs to the field of underwater acoustic vector array calibration, and more particularly relates to a bounded space correction method for the low-frequency directional multi-polar vector array for the calibration of the super-directional multi-polar vector array within the low-frequency ranging from 20 to 1000 hz. The method comprises the following steps: establishing a super-directional multi-polar vector array including 0 to 4 matrixes; producing by a modulating signal generator a CW pulse signal to be loaded by a power amplifier into a sound source to form a testing sound field; rotating super-directional multi-polar vector array for 0 to 360 degrees; and collecting and storing the receiving signals of the 0 to 4 elements with each array element consisting of a sound pressure signal and two channels of vibration velocity communication signals, etc. The method of the invention overcomes the problem that currently, the calibration of a small-scale array needs a large-scale free field space and provides a calibration method for bounded water areas. The method has strong operability, is convenient and practical to use and can be widely used in the calibration of low-frequency super-directional vector array, making it widely used in various fields of low-frequency water sound metering.