Modern society, rapid development. Excavator as production equipment, the role is more and more obvious. But now the excavator has been difficult to meet the needs of the present times, so the excavator needs to be improved is also imminent. Now there are many types of excavators on the market, our work to improve the excavator bucket, so that it can be telescopic. So as to adapt to the various environments on the construction site, the working environment of the excavator is often more complex, so we give the excavator more functions. The turning head of the stone crusher and the arm of the excavator are combined to deal with the complex construction environment and achieve the concept of multi-purpose machine. Our track has also been modified from the original ordinary track design to an innovative wedge-shaped functional track that can rotate 180 °. The innovative wedge-shaped functional crawler has greatly improved the cross-country and risk-related capabilities of the body, making it have better passability and improving operational capabilities.