The Craighead County Sheriff's Office says it happened outside Lake City.
The boy faces charges of arson, falsifying a police report and felony aggravated cruelty to animals.
The dog survived the attack.
Craighead County officials say it's believed the teen tossed a piece of concrete through a bedroom window and then poured lighter fluid on an outside wall of the home and set it on fire. The fire went out by itself before doing any serious damage.