Abstract: In order to investigate the tobacco ridge size standard of mechanization ridging, solve the problems of labor shortage and high cost, improve tobacco leaf quality and increase the output value of flue-cured tobacco production, a field experiment was conducted to study the effects of tobacco ridge height on the growth, evelopment, yield and quality of flue- cured tobacco variety‘Cuibi- 1’(CB- 1) in Sanming City, Fujian Province. The ridge height was set as 30, 35 and 40 cm. The results showed that: (1) with the increase of tobacco ridge size, the field growth stage was prolonged; (2) with the increase of tobacco ridge size, the tobacco plant grew slowly at first, then had a vigorous growth; (3) with the increase of tobacco ridge size, the incidence of tobacco mosaic disease and bacterial wilt was effectively reduced; (4) with the increase of tobacco ridge size, tobacco leaves yield increased significantly, but too large tobacco ridge size would lead to the decline of the quality and the output value of tobacco leaf; (5) proper increase of tobacco ridge size could obviously improve the suitability degree of the chemical ingredients’content of flue-cured tobacco and the coordination of those chemical ingredients, but too large tobacco ridge size would lead to the decline of the suitability degree of the ingredients and their coordination. Therefore, the tobacco ridge size of 35 cm was the best one for‘CB-1’ flue-cured tobacco leaf production, the variety could be recommended and planted in Sanming tobacco leaf production area of Fujian Province.