This extendable round dining table combines the warm texture of walnut wood with a sintered stone tabletop, balancing aesthetic design, stable construction and flexible space adaptation, making it easy to place even in small apartments. The base material is multi-layer solid wood panels veneered with natural walnut veneer, eco-friendly, healthy and featuring a stable and durable structure. The tabletop is crafted from sintered stone with high hardness, scratch resistance, wear resistance and high temperature resistance, allowing oil stains and sauces to be wiped off in one go. The tabletop is equipped with a hidden pull-out extension structure paired with heavy-duty thickened extension slide rails for smooth sliding and outstanding load-bearing capacity. It comes with an ergonomic curved extension handle that fits the palm comfortably and stays firmly fixed without loosening. A locking structure is installed at the extension joint; when locked, the tabletop joints are tight and flat to avoid dirt buildup and eliminate wobbling during use. Once fully extended, it can seat multiple diners simultaneously and greatly boost space utilization. The supporting leg incorporates pine geometric aesthetics. Inside the walnut veneered pillar lies an I-shaped steel reinforcement frame, with a solid wood connecting plate at the top, thickened built-in stainless steel tubing in the middle, and a widened thickened stainless steel base plate at the bottom to evenly distribute weight and keep the whole table stable without shaking. The base adopts a two-layer composite four-petal flower-shaped chassis made of a combination of walnut wood and stainless steel. Its outward flower outlines extend the support arms for a larger supporting area, with soft edge lines and a compact footprint that saves indoor space. The dining table can flexibly switch between different sizes to meet both daily simple meals and large group dinner gatherings.