US police have arrested a 22-year-old Milwaukee woman after a man was stabbed more than 300 times.

According to an affidavit accompanying a search warrant, Arizona man Ruben Vati, 18, was bleeding from the neck, arms, legs and back when he called police about 9.00pm on Sunday.

Accused ... Rebecca Chandler

The man told police he met 22-year-old Rebecca Chandler online and took a bus from Phoenix to meet her.

Court documents said once he arrived he was bound and stabbed over two days.