Abstract: Based on the ADTD ( advanced direction and time of arrival detecting system) lightning location data in the Beijing-Tianjin-Hebei region from 2008 to 2018, this study uses the line corridor grid method to study the spatiotemporal variation characteristics of cloud-to-ground lightning frequency, density, lightning current amplitude, and steepness along the Beijing-Tianjin intercity railway. The entropy weight comprehensive evaluation method is used to establish a lightning hazard model to reveal the risk levels of different sections. The results are as follows. (1) Along the Beijing-Tianjin intercity railway, negative (positive) cloud-to-ground lightning occurs most frequently with a bimodal (unimodal) structure in daily variation in August (June). (2) The peak current amplitude distribution of negative cloud-to-ground lightning is concentrated, mostly appearing in the 10, 30) kA range. While that of the positive cloud-to-ground lightning is more dispersed, with a higher proportion at high intensities. Both positive and negative cloud-to-ground lightning current steepness distributions are relatively concentrated, predominantly occurring within the 3, 12) kA·μs⁻¹ range. (3) The density of cloud-to-ground lightning along the Beijing-Tianjin intercity railway generally exhibits a spatial distribution pattern of "increase-decrease-increase-decrease", with the most susceptible sections to cloud-to-ground lightning occurring at the Beijing-Tianjin-Hebei border. The lightning peak current amplitude shows a pattern of "higher in the north and lower in the south", with high-value areas for negative (positive) cloud-to-ground lightning appearing in the north-central parts of the Beijing section (from the Beijing section to the northern part of the Tianjin section). The peak current steepness of negative (positive) cloud-to-ground lightning generally follows a pattern of "higher in the north and lower in the south" ("high-low-high-low"), with high-value areas occurring in the north-central parts of the Beijing section (the northern part of the Beijing section and the southern part of the Beijing section to the central-western parts of the Tianjin section). (4) The lightning risk level along the Beijing-Tianjin intercity railway gradually decreases from the Beijing section to the Binhai section, with high-risk sections mainly located in the north-central parts of the Beijing section.