The invention provides a high-frequency low-pass filter with a strip line structure. The high-frequency low-pass filter comprises a dielectric substrate, an input terminal and an output terminal. The high-frequency low-pass filter is characterized in that the filter further comprises an input inductor, an output inductor, a first-level strip line, a second-level strip line and a third-level strip line, the input inductor and the output inductor are arranged in the cuboid dielectric substrate, the first-level strip line, the second-level strip line and the third-level strip line are positioned on the same plane, the strip lines are connected with one another through first-level circular strip lines, and the third-level strip line is connected with the output inductor through a first-level circular strip line. The novel high-frequency low-pass filter with the strip line structure, namely a low-pass filter with a new structure, is small in size, light in weight, high in reliability, excellent in electrical performance, simple in structure, high in yield and batch uniformity, low in cost and stable in temperature performance.