Disclosed is a laminated glass having a plastic film inserted therein, which comprises a glass plate, an interlayer film, a plastic film, an interlayer film and a glass plate laminated in this order, wherein the plastic film has, formed thereon, an infrared ray reflection film produced by laminating dielectric films, and wherein the plastic film having the infrared ray reflection film formed thereon meets any one of the following requirements (A), (B) and (C): (A) the plastic film having the infrared ray reflection film formed thereon has a thermal shrinkage rate of 0.5 to 3% at a temperatureranging from 90 to 150 DEG C; (B) the plastic film has an elastic modulus of 30 to 2000 MPa at a temperature ranging from 90 to 150 DEG C; and (C) the plastic film has an elongation rate of 0.3% or less when a tensile force of 10 N is applied per 1 m of the width of the plastic film at a temperature ranging from 90 to 150 DEG C.