The present invention provides a photovoltaic welding ribbon detection method, pertaining to the field of photovoltaic welding ribbon detection equipment. The method comprises the following steps: 1)sampling and dividing the sample into two groups; 2) testing the exterior, the resistivity, the tensile strength and the elongation rate of the first group of the sample, and recording the results; 3)manufacturing a laminating part and putting the second group of the sample on the laminating part side by side; 4) placing the laminating part with the sample in a test device and performing cold andhot shock and ultraviolet radiation on the sample; 5) testing the exterior, the resistivity, the tensile strength and the elongation rate of the second group of the sample, and recording the results;and 6) comparing the test results of step 2) and step 5), and judging the fact that whether the sample is qualified. The method has the advantage of simple operation, and by comparing the situationsof the welding ribbon before and after the cold and hot cycling and the ultraviolet radiation, the real performance of cold and hot environment resistant cycle of the welding ribbon is tested. The method can provide reliable testing data, ensure the component product quality and lower the component use risk.