The invention discloses a method for drawing clothes armholes and sleeves, which comprises an armhole part drawing method and a sleeve part drawing method. The armhole part drawing method comprises the following steps of: (S100) drawing the width of the bottom of the armhole according to a chest circumference line on a garment piece; (S200) generating armhole base line segments c2c1 and a2a1 as arear armhole depth and a front armhole depth respectively; (S300) making vertical line segments a1a and c1c on a2a1 and c2c1, and selecting shoulder part volume according to different clothes; (S400)setting tangent points a3 and c3 on a2a1 and c2c1, and determining the end points a4 and c4 of the anterior armpit volume and the posterior armpit volume; and (S500) sequentially connecting the pointsa, a3, a4, b, c4, c3 and c to form a complete arc line according to the determined points, thereby forming an integral armhole shape. The method effectively unifies elements such as external body angle, sleeve mountain depth, sleeve width, sleeve mountain curvature, sleeve mountain inclined line, armhole structure and shape, bust size, change of big and small sleeves and the like, and improves drawing efficiency and style requirements.