A child stroller apparatus includes a standing frame, a push handle frame having a side segment that is pivotally connected with the standing frame via a pivot connection, an adapter having a coupling portion configured to receive the installation of a detachable part, the adapter being fixedly connected with a handle, the handle having a cavity through which is slidably disposed the side segment so that the handle and the adapter are slidable in unison along the side segment for adjustment, and a locking mechanism for locking the adapter in position on the side segment.