The invention relates to a safety device for a blender that consists of a blending container (10) which is placed on a base (7) that is equipped with a drive motor. The safety device has two vertically moveable actuating pins (1) which are arranged at a distance from each other and which protrude upwards through the wall of the base (7). The blending container (10) has corresponding actuating points (11) which simultaneously, evenly push the two actuating pins (1) downwards, horizontally when the blending container (10) is correctly positioned on the base, hereby closing the circuit that supplies the drive motor. Maloperation or the driving of the motor when the blending container (10) is not correctly positioned on the base is avoided by means of actuating members in the base (7) being connected to the actuating pins (1) in such a way that a safety switch only closes when the pins (1) are pushed down horizontally, simultaneously and evenly.