A trampoline incorporating fibreglass rods, comprising: a plurality of guardrail poles, a plurality of side-frame tubes, a plurality of support-leg tubes, a guardrail netting, and a plurality of connecting pieces, the guardrail poles, the side-frame tubes and the support-leg tubes being connected together by the connecting pieces, wherein each of the plurality of guardrail poles includes an upper fibreglass rod, a lower fibreglass rod, an internal securing tube, and an external securing tube; wherein of the upper fibreglass rod and the lower fibreglass rod, a first one is connected to the internal securing tube by welding, and a second one is housed within the internal securing tube, said external securing tube fitting over an outside of the internal securing tube; wherein a stop section (130, 131) is provided on said external securing tube which reaches and connects to the internal securing tube or the upper fibreglass rod or the lower fibreglass rod, wherein the guardrail netting includes a plurality of securing fabric sleeves stitched to the top of said guardrail netting, the top of each upper fibreglass rod having a ball-shaped section, each securing fabric sleeve including a first constituent part matching the ball-shaped section, and a second constituent part matching the upper fibreglass rod, a width of said first constituent part being larger than a width of the second constituent part, the second constituent part defining a gap opening in a middle of the second constituent part, wherein each connecting piece includes a lower securing tube (52, 152) and a securing component, a bottom end of each lower fibreglass rod being contained within the lower securing tube and secured to the lower securing tube by the securing component. a plurality of guardrail poles, a plurality of side-frame tubes, a plurality of support-leg tubes, a guardrail netting, and a plurality of connecting pieces, the guardrail poles, the side-frame tubes and the support-leg tubes being connected together by the connecting pieces, wherein each of the plurality of guardrail poles includes an upper fibreglass rod, a lower fibreglass rod, an internal securing tube, and an external securing tube; wherein of the upper fibreglass rod and the lower fibreglass rod, a first one is connected to the internal securing tube by welding, and a second one is housed within the internal securing tube, said external securing tube fitting over an outside of the internal securing tube; wherein a stop section (130, 131) is provided on said external securing tube which reaches and connects to the internal securing tube or the upper fibreglass rod or the lower fibreglass rod, wherein the guardrail netting includes a plurality of securing fabric sleeves stitched to the top of said guardrail netting, the top of each upper fibreglass rod having a ball-shaped section, each securing fabric sleeve including a first constituent part matching the ball-shaped section, and a second constituent part matching the upper fibreglass rod, a width of said first constituent part being larger than a width of the second constituent part, the second constituent part defining a gap opening in a middle of the second constituent part, wherein each connecting piece includes a lower securing tube (52, 152) and a securing component, a bottom end of each lower fibreglass rod being contained within the lower securing tube and secured to the lower securing tube by the securing component.