The invention relates to the technical field of laminated glass, in particular to ultrathin laminated glass used on vehicles, and provides the ultrathin laminated glass and a production method thereof. The production method includes: preparing a first glass substrate and a second glass substrate; heating and bending the first glass substrate to obtain a first bent glass plate; chemically toughening the second glass substrate to obtain a second straight glass plate; adhering the first bent glass plate, the second straight glass plate and at least one intermediate membrane piece to obtain the ultrathin laminated glass. Bending formation of the second straight glass plate which is thin is not needed, the forming process is simplified, and operability, convenience and continuity in subsequentproduction are determined, the laminated glass is thinned, mechanical and optical properties can meet requirements, and use safety and optical quality of the ultrathin laminated glass are guaranteed.