An electronic atomization apparatus with a switch-closed atomizer and an electronic simulation cigarette are disclosed. The electronic atomization apparatus comprises a battery rod (10), an atomizer (20) arranged on a top end of the battery rod (10), an atomization liquid storage device (30), a sleeve (40) and a suction nozzle upper cover (50). When in use, the atomization liquid storage device is placed in the sleeve, and the suction nozzle upper cover is sleeved on the sleeve. The atomization liquid storage device is pushed to move down by rotating the suction nozzle upper cover, while the atomizer-abuts against a sealing rubber (35), so that the atomization liquid storage device and the sealing rubber (35) slide relative to each other in opposite directions, so as to open a liquid outlet (32) of the atomization liquid storage device to communicate with a liquid inlet (22) of the atomizer.