Laminated non-woven fabric, method for producing same, and protective clothing

Provided are: a laminated nonwoven fabric having both high water resistance and antistatic properties without laminating a film; a method for producing the laminated nonwoven fabric; and a protective garment using the laminated nonwoven fabric. A laminated nonwoven fabric in which a spunbond nonwoven fabric layer (A1) comprising fibers containing a polyolefin resin and containing at least a phosphate ester is disposed on one surface, and a spunbond nonwoven fabric layer (A2) comprising fibers containing a polyolefin resin is disposed on the other surface, at least one melt-blown nonwoven fabric layer (B) comprising fibers containing a polyolefin resin is disposed between the spun-bonded nonwoven fabric layer (A1) and the spun-bonded nonwoven fabric layer (A2), and the ratio (tA1/tA2) of the thickness (tA1) of the spun-bonded nonwoven fabric layer (A1) to the thickness (tA2) of the spun-bonded nonwoven fabric layer (A2) in a non-welded portion of the laminated nonwoven fabric is 1.5-3.0. 本发明提供即使不层叠膜也兼具高的耐水性和抗静