Trampoline with improved hooking structure

A trampoline, comprising:

• a first annular member;
• a plurality of legs, which has ends attached to the first annular member to be spaced from each other;
• a second annular member, which larger in size than the first annular member, the second annular member being coupled to each of the legs, the second annular member being arranged below the first annular member;
• and
• a plurality of elastic units, each of which comprises a connection ring fixed to an elastic mat, a brace element, and an elastic element, wherein the brace element has a projection end pivotally connected to an outer side of the first annular member, the brace element having two opposite ends that are respectively pivoted to a first joint member and a second joint member, the first joint member having a distal end coupled to the connection ring so as to set the elastic mat within the first annular member, the second joint member having a distal end coupled to the elastic element, the elastic element having an opposite end that is attached to an outer side of the second annular member in a circumferentially distributed manner, whereby when the elastic mat is acted upon by a force and gets sinking, each of the brace elements is forced to rotate so as to pull and move each of the elastic elements.