The charity has decided to close the cafe ahead of the winter months after being 'significantly impacted' by rising costs.
Beresford Street Kitchen, which educates, trains and employs islanders with learning disabilities, has been hit by increased costs and reduced funding.
The Tea Rooms will be closing in November, after four years, although the employees at the Jersey Heritage site will move to the charity's town-based cafe.
It is something that has been seen across the island.
READ: Jersey Recovery College closes due to increasing costs
CEO Gabby Ellmers says it is also struggling with the rising cost of sales and reducing profits in our social enterprise areas.
"We remain committed to our mission and will continue to provide over 40,000 hours a year of education, training and employment for the 63 crew on our programmes.
"We will be focusing on our core objectives and on reinvigorating the town café.
"We are optimistic that once we navigate through these challenging times, we can continue to develop our valuable programmes to support people with learning disabilities and/or autistic people to reach their independence and employability goals."
Jersey Heritage says it is trying to find a 'long-term' solution to keep the cafe open.
Head of Commercial Operations, Michael Bee, says the La Hougue Bie Tea Rooms has been a great example of two charities working together in partnership to provide an excellent service for the Island.
"Since the Tearooms were renovated and reopened in 2019, enhancing La Hougue Bie as a visitor site, which previously had no refreshment service, thousands of customers have enjoyed the Tearooms.
"We’d like to thank BSK for their wonderful service and dedicated La Hougue Bie Tearooms team."