The invention relates to an integrated end device for an automatic puncture robot. The integrated end device comprises a cylindrical shell, a conversion module, a grabbing disc module and a pluralityof end tools. The conversion module comprises a rotating motor, a driving rod and a conversion disc, the top end of the driving rod is connected with the rotating motor, the bottom end of the drivingrod is connected with the conversion disc, long-strip-shaped holes are distributed in the conversion disc, the grabbing disc module comprises an installing disc and installing rods, first sliding blocks are distributed around the installing disc, axial sliding rails are distributed on the inner wall of the cylindrical shell and connected with the first sliding blocks, a driving unit is connected with the axial sliding rails to enable the mounting disc to move in the axial direction of the cylindrical shell, an annular sliding groove is formed in the bottom of the mounting disc, the second sliding blocks of the mounting rods are connected with the annular sliding groove, the driving rod penetrates through the shaft hole, and each mounting rod penetrates through one corresponding long-strip-shaped hole to be connected with one end tool. Compared with the prior art, the integrated end device is simple in structure, realizes multifunctional integration of end equipment, can execute multifunctional operation at a time in cooperation with the mechanical arm, and can improve the working efficiency.