Abstract: There is provided a molding method for performing injection molding by using a multi-cavity hot-runner mold having a plurality of valve gates, wherein a proper holding pressure and the like are set for each cavity, a pressure holding step can be carried out, a plurality of products having an appearance free from such a defect as a sink mark can be obtained, the pressure in the cavity can be reduced by a gas pressure, and a necessary mold clamping force can be decreased. A valve for a first cavity is closed after the filling into the first cavity is finished, and a valve for a second cavity is concurrently opened to perform the filling into the second cavity. When injection is effected into each cavity in succession, a gas is injected into the filled resin, thereby to carry out a pressure holding step. The same pressure holding step is carried out for a third cavity and the succeeding cavities. As a result, a plurality of products having an appearance free from such a defect as a sink mark can be obtained.