The invention provides a manufacture method of a sensor and the sensor. The method comprises the following steps: a mold with a mold cavity is provided; at least a chip is arranged inside the mold cavity; the chip has an active surface and a back side which are opposite to each other; the active surface faces the bottom of the mold cavity; the mold cavity is filled with a high-molecular material to cover the back side of the chip; heat treatment is carried out and the high-molecular material is solidified to be a high-molecular substrate; demoulding is carried out such that the high-molecular substrate is separated from the mold cavity; multiple wires are formed on a first surface of the high-molecular substrate; and the wires and the chip are electrically connected. According to the invention, manufacture cost is reduced, and competitiveness of the commercial product is further enhanced.