Abstract: Objective: To study development parameters of fluorescein angiography contrast controlment in ocular fundus.Methods: To make development test analysis for fluorescein angiography in 20 ocular fundus.Results: The best imagine edge effect and visual sense definition for red free light picture contrast is 0.87.Grey brume is the second important parameter. Conclusion: 0.87 could be the contrast controlment parameter for fluorescein angiography in ocular fundus, and the decision principle of contrast controlment is according to the characterstic requirment of ocular fundus fluorescein angiography and at the same time give some attention to the interaction of other development parameter.