Smoke generator and assembling method therefor

A smoke generator and an assembling method therefor. The assembling method comprises: a. fixing a first support (20) and a second support (30) respectively at two ends of a supporting pipe (10); b. sleeving the supporting pipe (10) obtained in the step a onto an assembling rod (91) suitable for penetrating the supporting pipe (10); c. inserting a first end (63) of a heating body (60) from a gap between the supporting pipe (10) and the assembling rod (91) along the end of the second support (30) until the first end (63) of the heating body (60) extends out of the end of the first support (20); d. respectively bending two ends of the heating body (60) onto a positioning portion to fix the heating body (60); and e. successively fixing each heating body (60) along the circumferential direction of the supporting pipe (10), so that a plurality of heating bodies (60) surround a cavity (11). The assembling method has the advantages of simple and rapid process, high production efficiency and low reject ratio of finished products.