The price of fish glue in Beihai is many, ranging from several hundred yuan per catty to more than one thousand yuan per catty to tens of thousands per catty. The price of the same kind of gelatin is different, which is mainly determined by several aspects, such as the old and new size of gelatin. The older gelatin is, the more expensive it is, and the larger it is. In addition, dryness, quality, quality and thinness also determine the price of fish glue, so it should be considered comprehensively.