A child stroller apparatus includes a first side segment connected fixedly with a first shell portion and a grip portion that are disposed adjacent to each other, a second side segment fixedly connected with a second shell portion that is pivotally connected with the first shell portion, a latch assembled in a cavity delimited at least partially by the first and second shell portions, the latch being movable between a locking position that prevents relative rotation between the first and second side segments and thereby locks the child stroller apparatus in an unfolded state for use, and an unlocking position for folding and unfolding of the child stroller apparatus, and a release actuator assembled adjacent to the grip portion and operatively coupled to the latch, the release actuator being operable to cause the latch to move from the locking position to the unlocking position.