Rhian Robinson, 32, appeared at Cardiff Crown Court accused of the attempted murder of Cheryl Robinson during a family visit to her daughter's home.
The 63-year-old suffered multiple wounds in the alleged assault in Pontardawe, Swansea, in April.
Ms Robinson spoke to confirm her name and denied attempted murder, wounding with intent and unlawful wounding.
Her trial is due to begin on 28 September.
A woman has appeared in court to deny trying to murder her own mother by stabbing her.