A radio retention device designed to provide a secure attachment into the back of the majority of portable radios. A clip strap attaches through a belt loop that locks with a clip strap male buckle and a clip strap female buckle. The clip strap is attached to a radio strap which is then attached to a radio male buckle. The radio male buckle snaps into a radio clip which is secured to the back of a radio. A user of the radio retention device can attach the device to the radio and holster providing a secure attachment that will not interfere with the use of the radio. The device can also be embedded into a new holster (FIG. 4) by securing the radio strap directly to the inside of the holster. The security of the device will ensure that the lifeline of communication will not be removed from the professionals that use portable radio systems.