A tray-type component supply device includes an exchanging table configured to lift and lowered between an upper position and a lower position, a conveyance section configured to receive a tray from the exchanging table and convey the tray, and a control section configured to receive a detection signal from the detection sensor and cause the driving section to operate the exchanging table, the control section including an abnormality detecting section configured to detect an abnormal state in which a height position of the exchanging table becomes unidentified, a retraction operating section configured to cause the exchanging table to move to the retraction position at a low speed when the abnormal state is detected, and a calibration and restoration section configured to calibrate the height position of the exchanging table to restore a normal state.