The invention provides a 500kV and below crosslinked polyethylene power cable intermediate connector and a manufacturing method thereof. The manufacturing method comprises the steps: stripping the twoends of a cable and enabling at least a cable conductor, a semi-conductive layer in the cable conductor and a cable main insulating layer to be exposed and fusing the cable conductors of the two ends; recovering the semi-conductive layer in the connector: mounting the semi-conductive pipe prefabricated from the polyethylene semi-conductive material to the connecting position of the cable conductors of the two ends and covering at least the cable conductor and the semi-conductive layer in the cable conductor and mounting a pressing mold on the semi-conductive pipe and heating the pressing mold; recovering the main insulating layer of the connector: and mounting a connector insulating forming mold and at least partially covering the cable main insulating layer and the semi-conductive layerin the connector by the mold and heating the mold after the polyethylene granular material fully fills in the mold. The invention also provides the intermediate connector manufactured by the method. The connector manufactured by the manufacturing method and the cable body form a consistent structure, and the electric property of the internal electric field stress distribution is equivalent to thatof the cable body.