A remote operation device for remotely operating a construction machine having an attachment from a remote place distant from the construction machine, characterized in that the remote operation device comprises: a vibration detector disposable on the construction machine and configured to detect a plurality of vibration components in a plurality of directions different from each other, the vibration components being included in a vibration caused on the attachment; a first communication device disposable on the construction machine and a second communication device disposable in the remote place with respect to the construction machine, the first communication device and the second communication device being configured to transmit and to receive signals from each other; a transmission device (71, 72) configured to transmit vibration information on the vibration of the attachment received from the first communication device via the second communication device to an operator in the remote place; and a transmission control section configured to control an operation of the transmission device (71, 72), wherein a vibration determination condition for determining whether the vibration of the attachment is a vibration caused by the attachment's coming in contact with a different object is set in advance, the vibration determination condition includes a condition that an amplitude of a maximum vibration component largest in amplitude among the plurality of vibration components detected by the vibration detector is equal to or larger than a preset amplitude threshold, and the transmission control section is configured to control an operation of the transmission device (71, 72) to allow the vibration information to be transmitted to the operator only when the vibration determination condition is met. a vibration detector disposable on the construction machine and configured to detect a plurality of vibration components in a plurality of directions different from each other, the vibration components being included in a vibration caused on the attachment; a first communication device disposable on the construction machine and a second communication device disposable in the remote place with respect to the construction machine, the first communication device and the second communication device being configured to transmit and to receive signals from each other; a transmission device (71, 72) configured to transmit vibration information on the vibration of the attachment received from the first communication device via the second communication device to an operator in the remote place; and a transmission control section configured to control an operation of the transmission device (71, 72), wherein a vibration determination condition for determining whether the vibration of the attachment is a vibration caused by the attachment's coming in contact with a different object is set in advance, the vibration determination condition includes a condition that an amplitude of a maximum vibration component largest in amplitude among the plurality of vibration components detected by the vibration detector is equal to or larger than a preset amplitude threshold, and the transmission control section is configured to control an operation of the transmission device (71, 72) to allow the vibration information to be transmitted to the operator only when the vibration determination condition is met.