An electroacoustic device and a mobile terminal are provided. The electroacoustic device may include a box defining an opening; an electroacoustic component including a frame, a vibrating membrane and a driving assembly, whet the frame is installed inside the box, the vibrating membrane is assembled on the thine and covers the opening, the frame and the vibrating membrane define a chamber, the driving assembly is configured to drive the vibrating membrane to vibrate, and the frame defines a leaking channel, and partition nets set inside the box, wherein a space between the electroacoustic component and the box is divided into cavities by the partition nets, at least one cavity is filled with sound absorption material, and the cavities are communicated with the chamber through the leaking channel.