Vegetation investigation marking device

The utility model relates to the technical field of vegetation, in particular to a vegetation investigation marking device which comprises a base and a rainproof box, the middle of the top of the base is fixedly connected with the rainproof box, the inner bottom of the rainproof box is fixedly connected with a reset spring, the top of the reset spring is fixedly connected with a fixing plate, and a marking plate is placed on the top of the fixing plate. A sliding groove is formed in the right side in the fixed plate, and a movable plate is rotationally connected into the sliding groove through the fixed plate. The rain-proof box, the top cover, the fixing plate and the reset spring are installed, the marking plate is placed in the rain-proof box, in cloudy and rainy days, the marking plate can be protected and prevented from being eroded by rainwater, handwriting damage is caused, and follow-up investigation and research are affected; the survey marking device is fixed, so that the survey marking device canno