Early-stage surveying device

The utility model provides an early-stage surveying device, relates to the field of surveying, and aims to solve the problems that an antenna of an existing surveying device is assembled on a machine head through threads, the terrain of urban and rural planning areas is mostly severe, the movement range of surveying and mapping personnel is large during working, and the antenna is prone to loosening and disengaging from the machine head along with shaking of the body of the surveying and mapping personnel. Comprising a surveying rod, an extension rod is installed in the surveying rod in a sliding and inserting mode, and the extension rod is of a cylindrical structure; the top of the surveying rod is provided with a bubble in the middle; a limiting bolt is arranged in the middle of the bubble; a connector is arranged at the top end of the extension rod; a surveying machine is mounted in the connector in a locking manner; and a handbook limiting part is clamped on the surveying rod. According to the utility mod