To prevent the generation of a weaving bar by restarting only a normal rotation operation without reversely operating a shedding motion and a beating motion in a process for stopping a loom due to a picking failure, etc., removing the cause, and subsequently restarting the operation.

This method for starting a loom comprises stopping a picking operation on the basis of a loom-stopping signal caused by a picking failure, etc., braking and stopping the loom, continuously stopping the delivery of warps and the winding of the woven fabric, until a shedding pattern becomes the same pattern as a shedding pattern on the generation time of the loom-stopping signal in order to remove a stopping cause such as a picking failure, inhibiting the picking operation, simultaneously normally operating the loom, removing a loom-stopping cause such as a picking failure, picking one shot, and subsequently restarting the normal operation.