The invention discloses a sounding head cover which comprises a sounding cover body. A locking part locked with a pipeline for allowing a probe seat to be mounted and a lock head for controlling the action of the locking part are arranged on the sounding cover body, a key hole is formed in the lock head, and when a key is inserted into the key hole, the lock head can rotate to control the lockingpart. When the key is pulled out of the key hole, the position of the lock head is fixed. By arranging the lock head on the probe cover, when the key is inserted into the key hole, the lock head can rotate to drive the locking part to move, the sounding cover body is fixedly connected to the pipeline, or the sounding cover body is loosened on the pipeline from a fixed state so that the sounding head cover can be demounted. According to a ship adopting the sounding head cover, due to the fact that the lock head needs to be controlled by the key and only a person having the key can demount the sounding head cover, the ship needs to be controlled by a specific operator, and potential safety hazards can be avoided.