Abstract: The present disclosure provides a method for preparing lithium carbonate from lithium iron phosphate battery scraps and lithium carbonate thereof, and relates to a method for preparing lithium carbonate from lithium iron phosphate battery scraps and a lithium carbonate product thereof. The method specifically includes the following steps; performing oxidative acidolysis on a lithium iron phosphate material, thickening lithium solution, adding alkali to remove iron, and precipitating lithium carbonate, thereby obtaining a filter cake which is a lithium carbonate product. Lithium may be directly extracted by utilizing the lithium iron phosphate battery scraps. A technical problem in the prior art that lithium iron phosphate battery wastes cannot be effectively decomposed and recycled is solved. The method has the characteristics of simple process, high, lithium yield, and low production cost.