Provided is a tire puncture repair device capable of injecting a puncture sealing agent into a tire stably and speedily. A container is compressed between plate members by placing one of the plate members on the ground and pressing down the other one of the plate members with a foot. Thereby, the puncture sealing agent is discharged from the container and is injected into the tire through an injection tube. Discharge amount control means is attached to the injection tube to level an amount of the puncture sealing agent to be discharged.