Windowing food packaging bag with visual product

The windowed food packaging bag comprises a packaging bag main body, and the packaging bag main body is provided with a containing cavity for containing food; the packaging bag main body comprises a first bag surface and a second bag surface which are oppositely arranged; the packaging bag body is at least defined by the first bag face and the second bag face, and the containing cavity is defined by the first bag face and the second bag face. A transparent window body is arranged on the first bag surface; the transparent window body is arranged at the bottom of the first bag surface; the width of the transparent window body is smaller than that of the packaging bag body in the width direction of the packaging bag body. According to the packaging bag, the transparent window with the small area is formed in the surface of the packaging bag body, so that consumers can observe food in the packaging bag body conveniently. And meanwhile, the smaller transparent window body has smaller influence on pattern informati