OPTICAL MEASUREMENT DEVICE

The present invention relates to the field of optical measurement, and specifically relates to an optical measurement device, which comprises a measurement mechanism and a cleaning mechanism. The measurement mechanism comprises a first measurement unit (1) and a second measurement unit (2), wherein one of the first measurement unit (1) and the second measurement unit (2) is an optical fiber transmitting end, and the other one of the two is an optical fiber receiving end; both the first measurement unit (1) and the second measurement unit (2) are provided with measurement end surfaces (10), and a set gap (G) for accommodating a sample (14) to be measured is provided between the two measurement end surfaces (10); and said sample (14) is attached to the measurement end surfaces (10) of the first measurement unit (1) and the second measurement unit (2) so as to form a suspended fluid column. The cleaning mechanism is provided with a suction tip (3), and the suction tip (3) is arranged close to the set gap (G) and