Abstract: A satellite navigation conversion device having a portable player is disclosed. The satellite navigation conversion device comprises a microprocessor for controlling and processing signals of a external module in the satellite navigation conversion device, a satellite navigation module for receiving and transmitting position signals, a wired transmission interface for receiving/storing data from/to the portable player, a power control module for converting power supply into direct current suitable for the satellite navigation conversion device and the portable player, and a power input device for transmitting power supply between the satellite navigation conversion device and a external power devices.