A buried pattern substrate and a manufacturing method thereof are disclosed. A method of manufacturing a buried pattern substrate having a circuit pattern formed on a surface, in which the circuit pattern is connected electrically by a stud bump, includes (a) forming the circuit pattern and the stud bump by depositing a plating layer selectively on a seed layer of a carrier film, where the seed layer is laminated on a surface of the carrier film, (b) laminating and pressing the carrier film on an insulation layer such that the circuit pattern and the stud bump face the insulation layer, and (c) removing the carrier film and the seed layer, allows the circuit interconnection to be realized using a copper (Cu) stud bump, so that a drilling process for interconnection is unnecessary, the degree of freedom for circuit design is improved, a via land is made unnecessary and the size of a via is small, to allow higher density in a circuit.