Three-dimensional magnetic field mobile phone electronic compass test device

The utility model relates to a three-dimensional magnetic field mobile phone electronic compass test device. The three-dimensional magnetic field mobile phone electronic compass test device comprises a magnetic coil and a test support, and is characterized in that the magnetic coil is provided with three coil groups along the x-axis direction, the y-axis direction and the z-axis direction; the coil is in a square shape, each group is provided with two magnetic coils, the distance between the two coils is half of the sum of the radius of an internal tangential circle and the radius of an outer tangential circle of the square shape, the two coils are coaxial with each other and parallel to each other, and the coils in each group is perpendicular to each other. The three coil groups are fixed on a test platform through the coil support and perpendicularly superimposed to form a three-dimensional shape, and when constant current is supplied, a three-dimensional uniform and stable magnetic field is formed in the three-dimensional central area. Compared with the existing devices for testing a mobile phone electronic compass, the test device disclosed by the utility model is high in magnetic field stability, unlikely to interfere, large in test space and high in production efficiency.