The invention discloses a method for producing a thin-specification low-alloy high-strength diamond plate based on a CSP process. The method comprises the steps of 1, controlling heating temperature,specifically, the charging temperature and the tapping temperature are controlled; 2, controlling threading speeds, specifically, the different threading speeds are controlled according to different thicknesses of rolled finished products; 3, controlling rolling pressure, specifically, rolling force parameters are adjusted according to different thickness specifications; and 4, controlling roll shifting, specifically, after roll changing calibration is finished, circulating roll shifting from a zero point position with steps of 20 mm, 25 mm and 30 mm is started. According to the method, by controlling the heating temperature, the threading speeds, the rolling pressure, and the roll shifting and by adopting a laminar cooling mode for control, the pattern integrity and the plate shape of thelow-alloy high-strength diamond plate are ensured, the related standards and user requirements are met, the stable batch supply is formed, the production process is controlled stably, no production accidents such as scrap steel, and broken casting occur, and the stable batch production of the thin-specification low-alloy high-strength diamond plate produced by the CSP production line is realized.