The invention provides a layer-by-layer distributed detection method for detection arc panels, and relates to the technical field of detection and mapping. The method comprises the following steps ofS1, obtaining at least one hemispherical detection arc panel, and ensuring that radius values of all hemispherical detection arc panels are arranged in an arithmetic progression mode; S2, placing detection units on the inner side faces of all hemispherical detection arc panels; S3, sequentially numbering the hemispherical detection arc panels; S4, overlapping the center points of the bottom ends of all hemispherical detection arc panels on a steering plate; S5, adjusting the steering plate and aligning a detection target; and S6, obtaining a detection data difference value of each hemispherical detection arc panel and analyzing a detection result. According to the layer-by-layer distributed detection method for the detection arc panel, the adjustment is convenient; by means of mutual shielding of the layer-by-layer arc panels, the difference of two adjacent shielding areas is the same, the interference value is eliminated, the detection target information is acquired by aligning the detection target, and the detection accuracy is high.