The US retail chain - which has over 4,600 stores in the United States alone - has been trialling self-driving vehicles, which can scrub the floors.
Walmart have been conducting the trial using Brain Corp's robotic floor care bot called EMMA.
Kory Lundberg, a Walmart spokesperson, said: "We're always testing new ideas and new technology. We still have a lot more to learn about how this technology will work best for our different retail locations."
Whilst Brain Corp wrote on their website: "EMMA is an A.I. navigation system capable of operating floor care equipment in complex, real-world environments without direct operator control. Embedded into trusted, brand-name, floor care equipment, EMMA is optimised for safety and designed to work alongside human teammates."
It comes after Walmart hired robots to identify when they need to restock their shelves. They have deployed shelf-scanning robots at over 50 of their stores in the US to ensure their stock is always replenished on the shelves.
The robot - which is around two foot in height - has cameras built into it that looks at the shelves to see where there are gaps. From there, they can inform their human colleagues, who are then able to check the robot's identification of a gap and then restock their shelves.
Jeremy King, chief technology officer for Walmart U.S. and e-commerce, said: "If you are running up and down the aisle and you want to decide if we are out of Cheerios or not, a human doesn't do that job very well, and they don't like it."