Latest robots are on display at the China International Robot Show 2015 in Shanghai on July 8, 2015.

Qu Daokui, director-general of the China Robot Industry Alliance, says humans should make good use of robots but also be aware of their negative effects. "Now we think that technology is a double-edged sword. On one hand, we should let robots contribute to social development. On the other hand, we should reduce their negative effects to a minimum."

Service robots have been popular at the show.

The current market size of service robots is nearly two billion US dollars despite the fact that service robots haven't been used in everyday life for very long.

Gao Feng, a professor at Shanghai Jiao Tong University, says it will have dramatic growth in the near future.

This is the fourth annual CIROS show since its foundation in 2012.