A base apparatus for providing engagement to advice holder is provided, including a connection unit, a fixed unit, and at least a weight unit. The connection unit is for connecting a clapper or holder of electronic device, and the fixed unit is engaged to the bottom of the connection unit. The weight unit is sandwiched between and partially contained within the boundaries of the connection unit and the fixed unit. The weight unit includes a wrap means, an anti-slip means, and at least a weight object. The boundaries of the anti-slip means and the wrap means are engaged together to form a space for accommodating the weight object.