Miley Cyrus -- Scissor-Wielding Intruder Hit with Restraining Order

The scissor-wielding man who tried to break into Miley Cyrus' L.A. home a few months ago has been ordered to stay away from the pop star for the next 3 years.

An L.A. County Superior Court judge just granted Miley's request for a restraining order against 40-year-old Jason Luis Rivera ... who was arrested at Miley's L.A. home back in September.

Rivera was convicted of trespassing and was sentenced to 18 months in jail ... but Miley wanted to make sure she is protected when he gets out.