The present invention relates to an angle adjustable connecting part for farm equipment and hand tools, which can easily detach a working part of farm equipment and a hand tool from a sack, and can be adjusted at various angles to allow many types of farm equipment to be interchangeably used. The present invention is configured such that: a connecting part is formed on the front end of a working part of farm equipment or a hand tool, a connecting part is also formed on the front end of a sack, and the working part and the sack can be coupled through the connecting parts; the connecting part has a fixing hole formed in the center thereof, and multiple angle adjusting holes are formed concentrically outward from the fixing hole; a fixing hole is formed at the center outward from the connecting part, and a fixing plate is provided having a fixing protrusion that is inserted into the angle adjusting hole formed outward thereon. When a fixing screw is inserted in and fixed to the fixing plate and the fixing hole o
