The invention relates to the technical field of digital products, and discloses a protection device with a digital product drowning rescue function. The device comprises a shell, two packaging bags are filled with citric acid powder and baking soda powder correspondingly, an air bag is fixedly mounted at the top of the shell, a pricking pin is slidably inserted into an air cavity, an inner disc and an outer disc are rotatably connected to the lower portion of the interior of the shell, and a ball is mounted in the inner disc through a spring. When the digital product falls into a river, underthe effects of gravitational acceleration and inertia, when a ball is in contact with a contact type switch, an electromagnet pushes the pricking pin to move leftwards to prick the two packaging bags,a sealing gasket is knocked open, river water flows in and makes contact with citric acid powder and baking soda powder to generate a large amount of gas, the air bag expands, the digital product canfloat on the river, people can fish the digital product in time conveniently, and the problem that the digital product sinks to the bottom of the river and is not easy to retrieve after accidentallyfalling into the river is effectively solved.