The invention relates to the technical field of millimeter wave linear frequency-scan radar, and specifically relates to a high frequency millimeter wave linear frequency-scan radar transceiver front-end module. The high frequency millimeter wave linear frequency-scan radar transceiver front-end module includes a circuit substrate, a high frequency circuit assembly on the upper surface of the circuit substrate, and a low frequency circuit assembly on the lower surface of the circuit substrate, wherein the circuit substrate successively includes a radio frequency layer, a ground layer and a lowfrequency layer from top to bottom; through holes are formed in the circuit substrate; the high frequency circuit assembly includes high frequency millimeter wave chips; the radio frequency layer ofthe circuit substrate is provided with chip mounting holes; and the high frequency millimeter wave chips are arranged in the chip mounting holes. By means of a mixed compression laminated plate packaging mode, the high frequency millimeter wave linear frequency-scan radar transceiver front-end module can solve the problem that a current high frequency millimeter wave linear frequency-scan radar structure has the disadvantages of complicated structure, large volume, high weight, and high cost, and can reduce the module size and the cost of the module at the same time.