Former World Champion Ebdon has reached just one ranking event quarter-final so far this season - at the International Championship - but showed signs of a return to form with an impressive win against Trump. From 4-3 down, Ebdon won the eighth frame with breaks of 48 and 30, then took the decider with a superb 86.
"We both missed a few balls so perhaps the standard could have been a bit higher but I was very pleased with today's result," said 43-year-old Ebdon. "I tried really hard and it's a very good win for me.
"I always looking forward to coming back to Beijing because I knew the conditions will suit me. It's important to be coming into form at this time of the year. It's been a very disappointing season for me, especially considering how hard I have worked. My preparation for this tournament has been good and I think this win is the result of all the hard work I've put in.
"I decided not to play in all of the European Tour events this season. Some players are happy to play in all of the tournaments but that's not physically possible for me and it's very tiring for me because I put so much effort into my matches in terms of concentration. But you just have to adapt and compete to the best of your ability. It's days like today that make me realise that it still worth me putting all the effort in. I proved today I'm still capable of beating the best players in the world."
Jimmy White continued his excellent run in the event with a 5-3 defeat of close friend Alfie Burden. The Whirlwind's top breaks were 91, 60 and 110.
"I'm playing good stuff, I needed to win my last match to stay on the tour so I'm very pleased with my performance," said White. "I outplayed him in safety. My experience won me the match.
"I'd like to thank my fans in China. I've been coming to China for 30 years. I made a film with Stephen Chow 20 years ago (Legend of the Dragon), a very famous movie. We went to Hong Kong for the 20-year-anniversary. So I'm known in China for that movie when I was young as well as my snooker. I love China and I really appreciate my support. It's very nice to guarantee my place back on the tour in Beijing."
John Higgins top scored with 86 in a 5-1 win over Michael White while Shaun Murphy white-washed Dechawat Poomjaeng 5-0 with a top run of 90.
Belgian teenager Luca Brecel scored a 5-1 win over Dominic Dale with a top break of 84, while Ricky Walden came from 2-1 down to beat Xiao Guodong 5-3.
Ball by ball scoring and results from tournaments