The invention aims at providing a method for implementing in-place installation of gas turbine large-scale PCC equipment in a narrow space in order to achieve the technical effect that the PCC equipment is installed in place in the narrow space. The method comprises the following steps of 1, adjustment and fixation of the position of a transport vehicle; 2, arrangement of sleepers; 3, arrangementof a driving device; and 4, transfer of the PCC equipment to foundation stand columns.