The invention relates to an one-dimension compression coupling laser transmission device, and relates to a semiconductor laser optical-beam transmission optical system, which is mainly used for the pulse laser optical-beam reshaping and energy transmission of a laser real-force against solder system, and consists of a semiconductor laser, optical fibers and an alignment optical lens system, wherein the semiconductor laser, the optical fibers and the alignment optical lens system are used as an integrity to be encapsulated, the optical fibers are installed on the front part of the semiconductor laser, the front part of the optical fibers is provided with the alignment optical lens system, and the alignment optical lens system is of a balsaming lens and consists of a laser incidence lens and an outgoing lens. The one-dimension optical fiber compression coupling laser transmission device has reasonable design, simple structure, high optical power transmission efficiency and good homogeneity of the outgoing facula.