A Ford Falcon and a Mitsubishi Triton utility collided at the intersection of the New England Highway and Racecourse Lane at about 5.45pm on Thursday.
A 75-year-old Singleton man who was driving the Falcon died at the scene.
The driver of the Mitsubishi, a 42-year-old man, was treated at the scene before being taken to the John Hunter Hospital in a stable condition - he's also undergone mandatory testing.
A report will be prepared for the Coroner as investigations into the crash continue.
