To provide a film material for indoor tent which exhibits an excellent stain-proofing function against sand and dust and is suitable for indoor use, and to provide a method for producing the same.

This film material for indoor tent including a fiber substrate layer and resin layers disposed on both the sides of the fiber substrate layer is characterized in that a resin containing silica particles is adhered to at least one side of the film material in an amount of 0.5 wt.% and 2.0 wt.% based on the weight of the film material; the particle diameter of the silica particles is 20 nm and 100 nm; and the content of the silica particles is 60 pts.wt. and 200 pts.wt. per 100 pts.wt. of the resin. The method for producing the film material includes dissolving and/or dispersing a resin dissolvable or dispersible in water and a solvent in the water or the solvent in an amount of 15 wt.% and 75 wt.% based on the weight of the water or the solvent, dispersing silica particles having a particle diameter of 20 nm and 100 nm in the same water or solvent in an amount of 60 pts.wt. and 200 pts.wt. per 100 pts.wt. of the resin, and then dipping in the solution or dispersion to coat at least one side of the film material including the fiber substrate layer and resin layers disposed on both the sides.