To allow an alarm vibration generated by a vibration generator to be recognized by a user through a vibration transmission member. A vehicle alarm device (100) includes a vibration generator (30) configured to generate an alarm vibration having a frequency corresponding to a frequency of a received alarm signal, a vibration transmission member (90) configured to transmit the alarm vibration to a user, a travel situation information acquisition unit (70) configured to acquire travel situation information in accordance with a travel situation of the vehicle, and an alarm signal generator (70) configured to generate the alarm signal such that when the value of the acquired travel situation information is high, a signal to be inputted to the vibration generator (30) includes at least a high-band frequency and such that when the value of the travel situation information is low, the signal to be inputted to the vibration generator (30) includes at least a low-band frequency.