The invention provides an elevation cross arm of a small wire line, relates to a cross arm for a suspension wire, and aims to solve the problem that a wire ground clearance of the small wire line fails to satisfy the specification. The elevation cross arm of the small wire line specifically comprises an upper cross arm portion, the upper cross arm portion comprises an upper cross arm, an upper cross arm support iron member and an upper cross arm hold hoop, one end of the upper cross arm is fixedly connected with an outer circumference of the upper cross arm hold hoop through the upper cross arm support iron member, a first insulator connection member is fixed at the other end of the upper cross arm, and an included angle less than 180 degrees is arranged between the upper cross arm and theupper cross arm support iron member. According to the elevation cross arm, the wire ground clearance of the small wire line can be increased, hidden risks of the line can be eliminated in a short period, the structure is simple, and the fixing and the installation are easy.