Moffat won the special award for outstanding writing for his work on Doctor Who and Sherlock.
The writer said: "Write what you love. I've never loved anything as much as Doctor Who and Sherlock."
Phil Ford was recognised with Best Children’s TV Script for The Sarah Jane Adventures: The Curse of Clyde Langer.
Ford reacted to the news on Twitter: !F***ing hell! Just won the Writers Guild Award for Curse of Clyde Langer! And having a very nice night with Mr Steven Moffat."
The awards ceremony was held earlier this week at the Tabernacle in London.
(Source: BBC News)