A non-glass-cutting and adjustable hinge has a doorframe mount, a securing base, a spindle, a door bracket assembly, at least one positioning device and an adjusting assembly. The securing base is securely attached to the doorframe mount. The door bracket assembly is pivotally connected to the securing base with the spindle to attach to a glass panel and has a door bracket, two resilient plates, a pushing plate and multiple pushing bolts. The door bracket is constructed of a single body and has an engaging recess and multiple pushing threaded holes. The resilient plates are mounted inside the engaging recess and located respectively at two sides of the engaging recess. The pushing plate is mounted inside the engaging recess and abuts against one of the resilient plates. The pushing bolts are screwed respectively into the pushing threaded holes and push against the pushing plate.