The invention discloses a preparation method of a 
lithium thionyl chloride power type battery positive 
electrode. The preparation method comprises the steps of 1) performing 
powder material pretreatment; performing material mixing to form a half-dried wet material and performing uniform stirring; putting the half-dried wet material into a banded extruder with the sieving 
pore diameter of 0.5-1.5mmto be subjected to band 
extrusion to obtain a strip-shaped material with the length of 1-2cm; putting the strip-shaped material into a centrifuging 
pelletizing machine to obtain a fine pellet material with the grain 
diameter of 0.5-1.5mm; and performing 
vacuum drying on the fine pellet material for 8-10h; 2) putting the fine pellet material on a net: performing smashing on the obtained dried finepellet material into a 
fine powder material; performing uniform mixing on the 
fine powder material and an aqueous 
solvent to obtain a half-dried 
powder material; and putting the half-dried 
powder material on a 
nickel net to be subjected to 
vacuum drying and fibering; and 3) positive 
electrode forming: performing rolling by adopting a 
rolling mill to prepare a positive 
electrode body with requiredthickness. By 
processing the wet material through the extruder and the 
pelletizing machine, the formula materials in the finally prepared positive electrode are more uniform in distribution, and higher structural strength, more developed net-hole structure, no powder falling-off, and more environment friendly and 
safer production process are achieved, and 
continuous production operation can be realized.