The invention provides a wind power generation prefabricated reinforced concrete tower pushing and installing method. The method is characterized in that a tower is of a conical cylindrical reinforced concrete structure and is divided into four tower sections, and the tower sections are consistent in height and include a first tower section, a second tower section, a third tower section and a fourth tower section from bottom to top. The wind power generation prefabricated reinforced concrete tower pushing and installing method comprises the steps of building a horizontal rail and a sliding platform, horizontally pushing the fourth tower section, vertically pushing the fourth tower section, horizontally pushing the third tower section, performing butt joint of the third tower section and the fourth tower section, vertically pushing the third tower section and the fourth tower section, horizontally pushing the second tower section, performing butt joint of the second tower section and the third tower section, vertically pushing the second tower section, the third tower section and the fourth tower section, horizontally pushing the first tower section, performing butt joint of the first tower section and the second tower section, performing the tower and a base platform and stretching and drawing cables outside the tower. By means of the method, operation above the ground is avoided and quick erecting of the tower is achieved through a horizontal pushing mode and a vertical pushing mode, and installing cost is reduced.