To efficiently drive a steel sheet in a short time even if a ground contains a boulder bed and a gravel bed.

This pile driving machine includes a vibration generator 50 which generates vibration in the direction in which a pile 30 is driven and applies the vibration to the pile 30 and a vibration generator 10 which is attachable to the pile 30, generates vibration in the direction orthogonal to the direction in which the pile 30 is driven, and applies the vibration to the pile 30. The pile driving machine drives the pile 30 in a ground G while transmitting, to the pile 30, both the vibration in the direction in which the pile 30 is driven that is generated by the first vibration generator 50 and the vibration in the direction orthogonal to the direction in which the pile 30 is driven that is caused by the second vibration generator 10.