Robert Peat, the Care Inspectorate's Director of Inspection, said: "We inspected Torbrae recently and found significant concerns about the quality of care.
"We served the home with a formal Improvement Notice setting out the changes needed to improve.
"The providers have now told us they intend to close the home. "Residents, their families, and staff have been informed.
"As Scotland's regulator for care services our first duty is to ensure that resident's needs are met and rights respected, so we are working closely with Glasgow City Council and the home to protect residents.
"We expect the service and local authority to work with residents and their families to ensure that individuals needs are met and their rights are respected.
"Everyone in Scotland has the right to good quality care which meets their needs. Anyone with concerns can call our helpline on 0345 600 9527."