The invention relates to the field of agricultural instruments, and in particular relates to an agricultural road grader. The agricultural road grader comprises a pulling frame assembly, a main frame assembly and a dragging frame assembly, wherein a first scraper, a second scraper, a third scraper, a fourth scraper, a fifth scraper and a sixth scraper are sequentially arranged on the road grader along the advancing direction of the road grader, and the first scraper, the second scraper, the third scraper, the fourth scraper and the fifth scraper sequentially scrape and prepare the ground when the road grader advances, scrapes and prepares the ground. Therefore, the road grader scrapes and prepares the ground in an inclined manner for multiple times and has good scraping and preparing effect, mounds formed by the two ends of the scraper at the front side can be scraped to be flat by a corresponding scraper at the rear side, the fifth scraper is a notched scraper, sandy soil can penetrate through a tooth-like opening in the fifth scraper, the mounds can not be formed at the two sides of the most downstream fifth scraper, and the scraping and preparing effect is better.