The invention discloses a preserved egg pickling agent which is characterized by comprising the following components in part by weight: 10-30 parts of tung tree seed shell ash, 2-4 parts of tea fluff and 1-4 parts of salt and is prepared by adding 50 parts of water. The preserved egg pickling agent has the advantages that the tung tree seed shell ash contains a lot of alkaloid, the natural green raw material substitutes for calcined lime by using the tung tree seed shell ash to pickle preserved eggs, not only the alkaline flavor of the traditional preserved eggs is eliminated, but also the nutrition value of the preserved eggs is increased; the egg white of the preserved eggs is clear and transparent, the yolk can maintain original yellow color, and the color is brighter and more attractive; the stinking smell of the preserved eggs can be removed by adopting the raw materials of tea leaves, zongzi leaf powder, ginger powder, cassia bark powder and the like, and unique fragrance is added to the preserved eggs; and bitter buckwheat straw ash added to the pickling agent has the effects of clearing away heat, eliminating toxin, diminishing inflammation and the like.