The invention relates to a household pill cutting and smashing integrated device. The device includes an upper housing, a lower housing is connected to the upper housing through a hinge, a first screwrod is rotatably connected to the side wall of the upper housing, a nut is in threaded connection with the segment, in the upper housing, of the first screw rod, and a limiting rod is movably inserted into a first through hole formed in the nut. By rotating the first screw rod, under limitation of the limiting rod, the nut is moved left and right, correspondingly a blade is moved to the positionabove a pill, and by pressing a first press block or a second press block, the position of the pill is fixed by a first fixing rod or a second fixing rod; then, the device is turned off, the blade isused for cutting the pill, the pill to be ground is put into a grinding bowl, and by rotating a connecting rod to drive a grinding hammer to rotate, the pill is ground by the grinding hammer. According to the combined structure above, the device is easy to operate, convenient to use, low in manufacturing price, suitable for pills different in shape and size and precise in cutting.