A child-mother toy, comprising: a first assembly; and a second assembly comprising a supporting member, a triggering subassembly, a unfolding subassembly and an ejection subassembly, the triggering subassembly, the unfolding subassembly and the ejection subassembly being disposed on the supporting member, the second assembly having a longitudinal direction extending in a front-and-rear direction and a left-and-right direction extending perpendicular to the longitudinal direction, before the triggering subassembly is triggered, the unfolding subassembly is folded at the supporting member so as to define an accommodating cavity together with the supporting member, the accommodating cavity is configured to accommodate the first assembly therein; and after the triggering subassembly is triggered, the unfolding subassembly is unfolded to open the accommodating cavity, and meanwhile the ejection subassembly ejects the first assembly out of the accommodating cavity; the ejection subassembly comprises: an ejection member disposed on the supporting member and movable between an ejected position and a retracted position; and a locking member disposed on the supporting member and movable between a locked position and an unlocked position, when the locking member is located in the locked position, the ejection member is locked in the retracted position by means of the locking member, and when the locking member moves to the unlocked position, the ejection member is released by means of the locking member so as to enable the ejection member to be ejected; and characterized in that the ejection member is movable forward and backward between the ejected position and the retracted position by means of a first driving member, and the locking member is movable leftwards and rightwards between the locked position and the unlocked position by means of a second driving member. a first assembly; and a second assembly comprising a supporting member, a triggering subassembly, a unfolding subassembly and an ejection subassembly, the triggering subassembly, the unfolding subassembly and the ejection subassembly being disposed on the supporting member, the second assembly having a longitudinal direction extending in a front-and-rear direction and a left-and-right direction extending perpendicular to the longitudinal direction, before the triggering subassembly is triggered, the unfolding subassembly is folded at the supporting member so as to define an accommodating cavity together with the supporting member, the accommodating cavity is configured to accommodate the first assembly therein; and after the triggering subassembly is triggered, the unfolding subassembly is unfolded to open the accommodating cavity, and meanwhile the ejection subassembly ejects the first assembly out of the accommodating cavity; the ejection subassembly comprises: an ejection member disposed on the supporting member and movable between an ejected position and a retracted position; and a locking member disposed on the supporting member and movable between a locked position and an unlocked position, when the locking member is located in the locked position, the ejection member is locked in the retracted position by means of the locking member, and when the locking member moves to the unlocked position, the ejection member is released by means of the locking member so as to enable the ejection member to be ejected; and characterized in that the ejection member is movable forward and backward between the ejected position and the retracted position by means of a first driving member, and the locking member is movable leftwards and rightwards between the locked position and the unlocked position by means of a second driving member.