An implant delivery device (100, 200), comprising: a casing; and an inner tube driving member (150, 220), an outer tube driving member, an inner tube, an intermediate tube, an outer tube and an air-evacuation locking assembly (170, 210), each at least partially accommodated in the casing; the inner tube, the intermediate tube and the outer tube are sequentially nested from inside to outside, the inner tube and the intermediate tube form a first space therebetween, the intermediate tube and the outer tube form a second space therebetween, and the inner tube and the outer tube form a third space therebetween, wherein: the inner tube driving member (150, 220) has a proximal end that is sealingly fixed to a proximal end of the inner tube, the outer tube driving member sealingly fixed to a proximal end of the outer tube, the intermediate tube having a proximal end that is sealingly fixed to the inner tube driving member (150, 220), the intermediate tube extending through, and sealingly connected to, the outer tube driving member, the air-evacuation locking assembly (170, 210) detachably coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) is provided with a first air-evacuation channel, the air-evacuation locking assembly (170, 210) provided with a second air-evacuation channel, the second air-evacuation channel protruding out of the casing at a first end and brought, at a second end, into communication with the second and third spaces via the first air-evacuation channel and the first space when the air-evacuation locking assembly (170, 210) is coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) axially fixable relative to the casing through the air-evacuation locking assembly (170, 210) and, when the air-evacuation locking assembly (170, 210) is disconnected from the inner tube driving member (150, 220), the inner tube driving member (150, 220) is axially slidable along the casing. a casing; and an inner tube driving member (150, 220), an outer tube driving member, an inner tube, an intermediate tube, an outer tube and an air-evacuation locking assembly (170, 210), each at least partially accommodated in the casing; the inner tube, the intermediate tube and the outer tube are sequentially nested from inside to outside, the inner tube and the intermediate tube form a first space therebetween, the intermediate tube and the outer tube form a second space therebetween, and the inner tube and the outer tube form a third space therebetween, wherein: the inner tube driving member (150, 220) has a proximal end that is sealingly fixed to a proximal end of the inner tube, the outer tube driving member sealingly fixed to a proximal end of the outer tube, the intermediate tube having a proximal end that is sealingly fixed to the inner tube driving member (150, 220), the intermediate tube extending through, and sealingly connected to, the outer tube driving member, the air-evacuation locking assembly (170, 210) detachably coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) is provided with a first air-evacuation channel, the air-evacuation locking assembly (170, 210) provided with a second air-evacuation channel, the second air-evacuation channel protruding out of the casing at a first end and brought, at a second end, into communication with the second and third spaces via the first air-evacuation channel and the first space when the air-evacuation locking assembly (170, 210) is coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) axially fixable relative to the casing through the air-evacuation locking assembly (170, 210) and, when the air-evacuation locking assembly (170, 210) is disconnected from the inner tube driving member (150, 220), the inner tube driving member (150, 220) is axially slidable along the casing. the inner tube driving member (150, 220) has a proximal end that is sealingly fixed to a proximal end of the inner tube, the outer tube driving member sealingly fixed to a proximal end of the outer tube, the intermediate tube having a proximal end that is sealingly fixed to the inner tube driving member (150, 220), the intermediate tube extending through, and sealingly connected to, the outer tube driving member, the air-evacuation locking assembly (170, 210) detachably coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) is provided with a first air-evacuation channel, the air-evacuation locking assembly (170, 210) provided with a second air-evacuation channel, the second air-evacuation channel protruding out of the casing at a first end and brought, at a second end, into communication with the second and third spaces via the first air-evacuation channel and the first space when the air-evacuation locking assembly (170, 210) is coupled to the inner tube driving member (150, 220), the inner tube driving member (150, 220) axially fixable relative to the casing through the air-evacuation locking assembly (170, 210) and, when the air-evacuation locking assembly (170, 210) is disconnected from the inner tube driving member (150, 220), the inner tube driving member (150, 220) is axially slidable along the casing.