Problem to be solved: to provide a sewing machine capable of detecting the abnormality of a needle safely and saving power consumption.The sewing machine has a needle bar 31 detachably provided with a threaded needle 3, a magnetic sensor disposed in the vicinity of a path passing through the operation of the needle 3, and a detecting portion 900 for detecting the state of the needle 3 based on the signal output from the magnetic sensor.Diagram
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