Which car do you own? Kindly mention some details?
A crude solution can involve removing negative terminal of the battery for sufficient time (Like an hour or more; or removing it when parked in the garage at night, and then reconnect in the morning) and then reconnect. May be the light goes away.
But if it does not go away, and / or comes back again, then it can mean that there is definitely something wrong with the ABS Brakes system, and it needs to be figured out properly.