The invention relates to a sliding security gate inside a framed pocket unit. These Pocket Sliding Security Gates can be assembled and installed inside of the wall and positioned to close off rooms, hallways, and/or stairs for the protection of babies and toddlers, pets, and the disabled elderly. The Pocket Sliding Security Gate can be placed during construction where it can close across openings or hallways at the top or bottom of the stairs to provide safety and security to the vulnerable population listed above. In addition, this Pocket Sliding Security Gate also has an alarm attached to the end of the security gate so that when it opens, the alarm sounds to let the gatekeeper know that the security has been compromised.