As a native of Jiangsu, I lived in Dongying, Shandong Province for several years 20 years ago, during which I visited Jinan, Qingdao, Zibo, Linyi, Liaocheng, Heze, Binzhou, Tai 'an and other cities. At that time, there was a saying that when I went to the bridge in Guangdong and the road in Shandong, my first impression was that the road in Shandong was really wide. Indeed, at that time, Shandong paid more attention to transportation infrastructure than Jiangsu, especially northern Jiangsu, which led to an impression. Before analyzing the relationship between the two provinces, I want to talk about the huge differences between the two provinces. In terms of folk customs, Shandong people have been bold and chivalrous since ancient times and are also the hometown of Confucius and Mencius. The people are simple and honest, and Shandong's wine culture also has the characteristics of northern China. The folk customs in Jiangsu Province are very different. In southern Jiangsu, influenced by Shanghai, folk customs are more refined and elegant, but they tend to haggle over every ounce. Economically, there are more state-owned enterprises in Shandong than in Jiangsu, and there is a big gap between foreign enterprises and Jiangsu. Private enterprises have their own advantages. The difference of GDP between the two provinces is mainly because the Soviet Union is superior to Shandong in export-oriented economy. Shandong, like Jiangsu, has unbalanced regional development, and the gap between Jiaodong Peninsula and southwestern Shandong is almost a copy of southern Jiangsu and northern Jiangsu. Culturally, the integrity of Shandong is stronger than that of Jiangsu, and the advantage of Jiangsu lies in cultural diversity. Shandong is the hometown of Qilu. Although Qilu is somewhat different, the internal differences of Qilu culture are much smaller than those of Jiangsu. Jiangsu is a transitional province between north and south, and places like Xuzhou and Lianyungang in the north are greatly influenced by Shandong. Xuzhou's characteristic culture is the Chu-Han culture with charm in the north, and reaches Huai 'an and Yancheng in the south. It is a typical Jianghuai cultural area, spanning the Yangtze River to Suzhou, Wuxi and Changzhou, and it is a traditional Wu cultural area and Shanghai's external radiation area. It can be said that the mutual recognition between cultural areas in Jiangsu is much worse than Qilu culture (which is closely related to the greater language difference than Shandong, which will be discussed below), but because of this, the mutual influence and infiltration between cultural areas in Jiangsu makes Jiangsu look more dynamic. In terms of language, there is little difference in Shandong except Jiaodong. At least they can basically communicate with each other, which are typical northern mandarin, but Jiangsu is very different, and there are great differences between cultural areas. The language in Lianyungang, Xuzhou is close to the adjacent area of Shandong, belonging to the northern region, with Huai, Yan, Yang and Thai as typical languages. Southern Jiangsu belongs to Wu dialect area, which already belongs to Nan Man, and the other areas of Suzhou dialect are Nanjing and Nantong. Great changes have taken place in the language structure of Nanjing since the massacre. The new Nanjing people formed the new Nanjing dialect with northern Mandarin and northern Jiangsu dialect, while the old Nanjing dialect still exists in the old cities such as Qinhuai District, so it is basically impossible for the two Nanjing dialects to communicate with each other. Nantong area is a crisscross area of northern and southern dialects. Some residents in some areas of Haimen in Qidong are called sand people. They speak Wu dialect, which is basically close to Chongming dialect in Shanghai, while Hai 'an and Rudong belong to Subei dialect area, and Nantong city speaks an extremely difficult accent. Therefore, Nantong is a county that can't understand the city, and the township can't understand the county. The phenomenon of different sounds in ten miles is widespread. This complex dialect phenomenon caused by special historical reasons or cultural transformation is much more serious in Jiangsu than in Shandong. Therefore, on the whole, Shandong is a relatively pure northern province (in the eyes of Shanghainese in old China, the typical northerner is a Shandongese), while Jiangsu is a transition from north to south, with greater internal differences than Shandong. When it comes to the relationship between the two provinces, there are not many areas of direct economic competition, but they are highly complementary. However, Xuzhou, as the leader of Huaihai Economic Zone, has been strongly challenged by Jining in recent years. In terms of territorial jurisdiction, the two provinces are controversial, mainly concentrated in Weishan Lake area and the first three islands area, and it has been difficult to have a public opinion. From the perspective of development prospects, although Jiangsu has the advantage of GDP at present, the task of transformation and upgrading is very heavy, and the land population in Shandong is more than that in Jiangsu, and the potential cannot be underestimated. It is hard to say who will take the lead in challenging Guangdong's leading position in the future.