The invention discloses a wireless remote automatic monitoring method for water level, relating to the technical field of water level and hydrology monitoring. The method is characterized by comprising the following steps: a field sensor (3) is used for collecting the hydrographic data of the water level and the like; the collected water level data is transmitted to a center control station (1) by a GPRSRTU through GPRS network, and a solar panel and a lithium battery (5) is used for storing and supplying the field electric power; the center control station (1) is used for processing the data, such as check, storage and the like; the center control station (1) is connected with a mobile phone (2) in wireless manner; the mobile phone (2) and the center control station (1) are arranged at any different place, and the monitoring can be realized by water level monitoring software. In the method, wireless transmission monitoring of the water level data can be realized, thus the monitoring is accurate, timely and quickly. The method can lighten the labor intensity, reduce the cost and enhance the work efficiency, is particularly suitable for the field use and the remote use, and can be widely used in the water level monitoring of the reservoirs, the rivers, the lakes, the irrigation ditches, the mines and the like.