Abstract: 【Objective】 To select processed tomato varieties suitable for cultivation in southern Xinjiang. 【Methods】 9 kinds of processed tomatoes were used as test materials, and the differences between 9 processed tomato varieties were explored by comparing the fluorescence parameters, photosynthetic parameters, chlorophyll relative content and yield of 9 processed tomatoes, and the indicators of each variety were comprehensively evaluated and ranked by principal component analysis combined with cluster analysis. 【Results】 The results showed that the chlorophyll fluorescence parameters, chlorophyll relative content, photosynthetic parameters and yield of T₁ ('Jiahe Hongyun') performed better than other varieties, among which Fv/Fm was 0.81, qP was 0.85, Pn was 19.63 μmol/(m²·s), Gs was 0.54 mmol/(m²·s), and Tr was 8.25 mmol/(m²·s), all of which were significantly different from other varieties. 【Conclusion】 It shows that 'Jiahe Hongyun' has strong photosynthetic ability and environmental adaptability, high yield, so it is suitable for cultivation in Xinjiang Aral City and surrounding areas.