  In this paper, using the standard truncated Painleve analysis, the
Schwartzian equation of (2+1)-dimensional generalised variable coefficient
shallow water wave (SWW)equation is obtained. With the help of lax pairs,
nonlocal symmetries of the SWW equation are constructed which be localized by a
complicated calculation process. Furthermore, using the Lie point symmetries of
the closed system and Schwartzian equation, some exact interaction solutions
are obtained, such as soliton-cnoidal wave solutions. Corresponding 2D and 3D
figures are placed on illustrate dynamic behavior of the generalised variable
coefficient SWW equation.
