The invention relates to the field of ecological protection red line exploration calibration, particularly discloses a handheld ecological protection red line exploration calibration instrument based on Beidou positioning, and solves the problems that the existing handheld red line exploration calibration instrument based on Beidou positioning is not changed in
actual use due to the design of a single small screen, and particularly, when a user watches a map, the size of the small screen is not changed. In order to solve the problems that in the prior art, in the prior art, a positioning point cannot be marked in time in cooperation with an inkjet marking device, according to the scheme, the device comprises a handheld Beidou positioning instrument, a device box, an opening, a motor cabin, a
servo motor, a lead screw, a sliding base, a mounting plate, a
rotating disc, a display screen, a guide sliding rod and a sliding frame, and a rotating plate is rotationally connected between the sliding frame and the
rotating disc; the outer side of the guide sliding rod is further sleeved with a spring, and an auxiliary installation mechanism is further installed in the equipment box. The device can be used in a double-screen mode, the use experience is greatly improved, the use efficiency is improved, and the device can be matched with other devices in a multifunctional mode to mark scaling points in time.