WIRE ELECTRICAL DISCHARGE MACHINE

To provide a wire electrical discharge machine for which the machining precision of corner parts and corner exit parts in a workpiece are improved. A wire electrical discharge machine (1) includes a machining path compensation unit which compensates a machining path (PI), in a case of creating a corner part which is a circular arc as a second machining block (B2), by compensating a position of a center of the circular arc of the second machining block (B2) by way of a first compensation vector (VI) calculated based on at least one indicator among the four indicators of deflection of a wire electrode (5), etc., and inserting a linear first compensation block (AB1) between an end point of the first machining block (B1) and a start point of a second machining block (B2) which was compensated, and by eliminating a predetermined distance from the start point of a third machining block (B3), creates a starting point of this third machining block (B3), and then inserts a second compensation block (AB2) between the end point of the compensated second machining block (B2) and the created starting point of the first machining block (B3).