It is intended to provide a gelling agent, whereby a jelly, which is comparable in elasticity and chewing texture to jellies produced by adding gelatin and can sustain comparable filling workability to the case of adding gelatin, can be produced without adding gelatin to the starting materials; and a method of producing a jelly by using the gelling agent. Further, it is intended to provide a gelling agent for producing a jelly which suffers from no change in elasticity or chewing texture due to a change in temperature, thereby overcoming the disadvantages of gelatin; and a method of producing a jelly by using the gelling agent. A gelling agent for jellies which comprises, as the active ingredients, carrageenan, acacia and salts having a chelating effect. A method of producing a jelly without adding gelatin which comprises adding the above-described gelling agent for jellies to the starting materials for the jelly. This method is highly suitable for producing, in particular, gummy candies. According to the above method, moreover, jellies appropriately usable in combination with ice cream or chocolate and jellies to be used in cold regions or hot regions can be produced.