The invention relates to warning equipment and especially relates to shaking and warning equipment at construction sites. The technical problem to be solved by the present invention is to provide shaking and warning equipment for a construction site ensuring safety of people. The invention provides such shaking and warning equipment at construction sites comprising a pedestal and a first support;the first support is fixedly connected to an upper right side of the pedestal; a first slide rail is fixedly connected to the left side of the first support; a first slide block is slidingly connectedto the first slide rail; a cylinder is fixedly connected to a left end of the first slide block; a first fixing block is fixedly connected to a telescoping rod of the cylinder. The invention has thefunction of shaking and warning of the construction warning sign. It not only realizes the function of using the wind to drive the warning sign to shake, but also realizes the function of warning people using the sound of the knocking drum. The invention has the characteristics of convenient use, safe use, simple operation, low manufacturing cost and the like.