The invention relates to sea cucumber jelly and a processing method thereof. The method comprises the following steps: mixing sugar, agar, dextrin and magnetized water in proportion, heating for dissolving, adding sea cucumbers, jujubes, quinoa, essence and vanillin, uniformly stirring to obtain a mixture, metering, filling a jelly cup, sealing, packaging, sterilizing, and cooling to obtain the finished sea cucumber jelly, wherein by weight percent, the sea cucumber jelly comprises the raw materials of 10-15% of the sea cucumbers, 5-10% of the jujubes, 15-20% of the quinoa, 20-30% of the sugar, 2-10% of the agar, 10-15% of dextrin, 0.01-0.03% of the essence, 0.01-0.04% of vanillin and the balance of the magnetized water. The method is advanced in technology, reasonable in process, feasible to carry out and suitable for industrialized production; the sea cucumber jelly processed by the method is crystal-clear in appearance, smooth in mouth feel, easy to store, convenient to eat and capable of balancing and replenishing nutrition of a human body, restoring constitution and improving immunity.