Provided is a gel composition including a polyvinyl chloride-based resin and a plasticizer and exhibiting a gel state at 20° C. The plasticizer is at least one selected from a group consisting of isophthalic acid esters, terephthalic acid esters, fumaric acid esters, acetyl ricinoleic acid esters, citric acid esters, acetyl citric acid esters, adipic acid esters selected from di-2-ethylhexyl adipate (DOA) and diisononyl adipate (DINA), maleic acid esters and derivatives thereof, and salts thereof. Provided is an electronic element including a first electrode and a second electrode, and a polymer layer which is arranged between the first electrode and the second electrode and includes the gel composition.