Quickly-assembled modular aluminum alloy guardrail

The utility model relates to a fast assembly modular aluminum alloy guardrail which comprises a base, a sliding groove is formed in the base, a bolt penetrating into the sliding groove is installed on the left side of the base in a threaded mode, and an aluminum alloy guardrail fast assembly assembly is arranged at the top of the base. According to the quickly-assembled modular aluminum alloy guardrail, aluminum alloy vertical fences are slidably inserted into sliding grooves from the right side, bolts are rotated to be inserted into the sliding grooves, the first aluminum alloy vertical fence on the left side is fixed to the base, and then the first aluminum alloy vertical fence on the right side is pulled to the right side to tighten the aluminum alloy vertical fences; then a plurality of aluminum alloy vertical bars are inserted into inserting grooves formed in the upper fixing plate, then long inserting rods are inserted into the aluminum alloy vertical bars to fix the upper fixing plate and the aluminum