A fillable soft medium ear protector, which is used to place inside human ear canal, including a guide portion, a first fill portion disposed adjacent to the guide portion and provided with a first holding chamber, a second fill portion disposed adjacent to the first fill portion relative to the guide portion and provided with a second holding chamber, and a hollow passageway that extends between the first and the second fill portions. The hollow passageway passes through two connecting passages that respectively connect with a first and a second holding chambers. In addition, valve bodies are respectively provided between the first and the second holding chambers and the two connecting passages, thereby preventing a soft medium from leaking from the respective holding chambers. The two connecting passages enable a soft medium to respectively enter the first and the second holding chambers to form filled states therein.
