The propagation of two-dimensional (2D) spatial soliton waves in highly nonlocal media is investigated analytically by using self-similar mothod. A broad class of exact self-similar solutions to the highly nonlocal Schrdinger equation is obtained, and it can be described by Whittaker function in highly nonlocal media. The results demonstrate that there exist soliton waves, propagating in a self-similar manner. The higher-order spatial soliton waves can exist in various forms, such as 2D Gaussian soliton family, vortex-ring soliton family, multipole soliton family and defects soliton family by choosing optical soliton parameters. The stability of these soliton clusters in propagation is confirmed by direct numerical simulation.