An infant carrier apparatus comprises a support frame, a handle pivotally coupled with the support frame, and a safety lock. The support frame can include first and second frame portions pivotally coupled each other, whereby the first frame portion can rotate relative to the second frame portion between collapsed and deployed states. The handle can rotate relative to the support frame between two positions of opposite inclinations. The safety lock is assembled between the handle and the first frame portion, and is triggered by a rotational movement of the handle to lock the first and second frame portion. The safety lock is unlocked to allow relative rotation between the first and second frame portion when the handle is in the first position. The safety lock rotationally locks the first and second frame portion when the handle is in the second position.