Abstract: With agrivoltaic as backdrop, shading distribution caused by sunlight on photovoltaic panels and its impact on agricultural production were investigated．Based on geographical and meteorological data from Kunming City and Pu'er City in Yunnan Province, Ladybug 3D simulation technology was used to simulate and analyze changes in solar radiation intensity within shaded areas of photovoltaic panels．Experimental variables included three aspects such as spacing（20, 50, 100 cm）, installation height（150, 200, 250 cm）, and tilt angle（0°, 15°, 30°）．Experiment was carried out during peak solar radiation period from 9: 00 to 16: 00．Results indicated that under identical operation conditions, difference in shading rate between Kunming City and Pu'er City in December was the most significant, reaching 0.9 percentage points．Increasing spacing and tilt angle of photovoltaic panels could significantly reduce shading rates and improve crop lighting conditions．However, increasing photovoltaic panels height to higher shading rates in certain areas, potentially affected crop growth．