The star – real name Dylan Kwabena Mills – is accused of assaulting Cassandra Jones at her home in Streatham, south London, on June 8.
Announcing the charge last month, the Met Police said the alleged victim suffered “minor injuries” in the incident.
“Dylan Mills, 36, of Sevenoaks, Kent, has been charged with assault after an incident at a residential address in Streatham on June 8,” said the force.
“Officers attended and a woman reported minor injuries. She did not require hospital treatment.”
Rascal, wearing a grey suit and dark tie, was speaking on his red mobile phone when he arrived at court this morning.
The court heard he “denies pushing his head into (her) head and denies pushing her to the floor”.
Ms Jones and her mother are due to be witnesses in the trial, while Rascal’s manager is also expected to be called to give evidence.
“He received a phone call when the altercation is said to have taken place”, said defence counsel Iskander Fernandez.
“He received a detailed account which was very much at odds with what the complainant said.”
The rapper shot to fame in 2003 with his acclaimed album Boy in Da Corner, which won the Mercury Prize.
He has scored hits with song including Bonkers and Holiday, and was awarded an MBE in 2020 for services to the music industry.
Rascal, who lives at an address in Sevenoaks, Kent, denies assault by beating.
He was freed on bail until the trial, on the condition that he does not contact Ms Jones or her mother or return to the property in Streatham.