A chargeable wireless mouse includes a mouse body, a chargeable battery, a charging slot and a wireless signal receiver. A magnetic element and an electricity conducting structure are disposed within the charging slot. The wireless signal receiver includes a USB connecting part and a charging plate member. 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 member is magnetically attracted by the magnetic element and the wireless signal receiver is clamped by the electricity conducting structure, so that the wireless signal receiver is fixed in the charging slot. At the same time, the charging plate member is contacted with the conducting member such that electricity is transmitted to charge the chargeable battery.