A chargeable wireless mouse includes a mouse body, a battery, a charging slot and a wireless signal receiver. A magnetic element and a conducting member are disposed within the charging slot. The wireless signal receiver includes a USB connecting part, a metallic plate and a charging plate. The wireless signal receiver is connected with a computer host via a USB connecting port. When the wireless signal receiver is accommodated within the charging slot, the metallic plate is magnetically attracted by the magnetic element such that the wireless signal receiver is fixed in the charging slot. At the same time, the charging plate is contacted with the conducting member such that electricity is transmitted from the receiver circuit board to the chargeable battery.