The invention relates to an ice thickness and water level integrated and continuous monitoring method, which belongs to the technical field of hydrological monitoring. The monitoring device is composed of a lightning arrester, a wind power generation device, a triangular steel tower, a solar power generation device, a mounting base, an energy storage battery, a swiveling arm, an air coupled radarsensor (internally provided with a transmitter, a receiver and the like) and an integrated control box (internally provided with a wind-solar hybrid controller, a remote telemetry switch, a GPS module, and a 4G digital transmission module). When mounting and connection are completed, a remote computer opens each control module through GSM, relevant parameters are transmitted to the radar sensor through the 4G module, a radar map with GPS time annotation is received based on the 4G module, according to the two-way time of radar waves in the air and the two-way time deltat in an ice cover recorded by the radar map, the distance between the radar and the upper surface of the ice cover and the ice cover thickness deltah are calculated automatically by using formulas (3) and (4), and by using formulas (5) and (6), an ice cover upper surface or free water surface height H1 and an ice cover lower surface height H2 are calculated automatically.