Abstract: A track mounting structure includes: a linear motor coil, a linear motor magnet correspondingly provided with the linear motor coil, a first track, and a trolley; wherein, the cross-section of the trolley is U-shape, the internal of the U-shape forms a mounting cavity; the first track is provided inside the mounting cavity, two groups of upper rollers being axis crossing are provided between an upper surface of the first track and an upper surface of the mounting cavity. The disclosure moves the track beneath the linear motor coil, thus increasing the available space, which can be used to increase the size and load of the trolley, so as to achieve the purpose of changing the track form and strengthening the track structure.