An information processing method uses a computer and includes: obtaining a first information item regarding first monitoring performed by a first monitor on a first vehicle, the first monitoring being allocated to the first monitor; obtaining a second information item regarding second monitoring on a second vehicle, the second monitoring being not allocated to any monitor; comparing the first information item with the second information item; generating presentation information indicating the second monitoring on the second vehicle in accordance with a result of the comparing; and presenting the generated presentation information via a presentation device.