The invention relates to the technical field of maternal and child products, and discloses a double-pump sequential milk sucking device which comprises a liquid transferring box, a milk sucking nozzle is movably connected to the upper portion of the liquid transferring box, a milk sucking cover is movably connected to the outer surface of the milk sucking nozzle, a liquid transferring pipe is movably connected to the end, away from the milk sucking nozzle, of the liquid transferring box, The side of the liquid transfer pipe away from the liquid transferring box is movably connected with a milk storage bottle, through cooperative use of a fixing sleeve, a limiting sleeve, a rotating shaft, a moving block, a connecting rod, a limiting plate and a rotating disc, milk can be sequentially sucked from the left breast and the right breast in the milk sucking process, on one hand, the situation that continuous milk sucking increases the discomfort during milk sucking is avoided, and on the other hand, it is avoided that the position of the suction nipple needs to be adjusted left and right during milk suction, more time and labor are saved, the working efficiency during milk suction is improved, through cooperative use of a push rod, a cross rod, the pinion, a rotating rod and a suction nipple, in the milk suction process, the negative pressure of milk suction is kept consistent, and the situation that the negative pressure is too large or too small, and the milk suction effect is affected is avoided.