Microprofilometer measuring head for the measurement of changes in distance or changes in speed between a reference surface (14) and a reflecting surface (8) consisting of a light source (1) which emits interference-capable light, and an evaluating device (2) which indicates a distance change by evaluating the phase shift for measuring the shift or a speed by evaluating the Doppler frequency shift. The invention is characterized by a miniaturized, sturdy microprofilometer measuring head immune to interference