Particulate matter detection device

There is disclosed a particulate matter detection device which can accurately detect a particulate matter by use of a sensor circuit having a simple constitution. A particulate matter detection device (100) includes characteristics measurement means (20) having a voltage applying circuit (22) which applies a voltage signal of a sine wave obtained by tuning a voltage signal of a square wave with a low pass filter having a Q-value of 1.5 to 3, a current-voltage conversion circuit (26) which converts the applied voltage into a current, a detection circuit (23) which decomposes an output of the current-voltage conversion circuit (26) into orthogonal components by synchronous wave detection of two or more phases, to detect the output, and two or more calibration elements (24a and 24b) electrically connected to the voltage applying circuit (22) and the current-voltage conversion circuit (26) in a state where the calibration elements and the pair of measurement electrodes (12a,12b) are switchable, and the device calculates a calibration matrix Q of the voltage applying circuit (22) from two or more calibrating detection values measured by using two or more calibration elements (24a and 24b), respectively, and original true values of the two or more calibration elements, to calibrate a detected value measured between the pair of measurement electrodes (12a and 12b) in the particulate matter detection device (100).