Ricky Ma, 42, has spent more than $50,000 (£34,000) and 18 months creating his female robot prototype, Mark 1, which has the appearance of Scarlett Johanssen
Ricky, who says there are some other few people in Hong Kong who understand his hobby, told The Mirror he always had a soft spot for robots.
"When I was a child, I liked robots. Why? Because I liked watching animation. All children loved it," he said.