A traveling safety device for a vehicle of the present invention includes a storage device, a present vehicle position detecting device, a vehicle state detecting device, a curve recognizing device, a proper vehicle state setting device, a comparing device, an operating device, an improper operation determining device that determines whether or not the operation of the operating device for a recognized curve is improper operation, an improper operation curve storage device that stores the recognized curve for which the operation of the operation device is determined to be improper operation by the improper operation determining device, and a suppressing device that suppresses the operation of the operating device for the recognized curve stored by the improper operation curve storage device.