The invention relates to a SATA connector with direct transmission power supply, comprising a female joint and a male joint. The female is provided with a body and two first power pins, wherein the front end of the body is provided with a first port; two side walls are arranged in the first port; and one end of the first power pin is positioned at the two side wall of the first port, and the other end extends to the outer part of the rear end of the body. The male joint is provided with a body and two second power pins, wherein a side drain is arranged at each side of the body; the side drains are provided with outside side walls; the side walls are provided with gaps; and one end of the second power pin is arranged on the gaps in an exposed mode, and the other end extends to the outer part of the body. When the female joint is inserted with the male joint, the second power pin and the first power pin form electrical connection for transmitting power. Therefore, the manufacture of a SATA hard disk machine module is easier, the insertion of the male joint and the female joint is more stable at the same time, the risk of overburning the SATA hard disk machine module can not is avoided, and the invention has higher security and sharing.