For the chaos existing in a single-mode Haken-Lorenz laser system, a scheme of intermittent feedback with one variable is proposed. Numerical simulation results show that with the increase of appropriate control intensity, the Haken-Lorenz chaotic system can be suppressed to period 1, period 2, period 4, period 6, and period 8. Meanwhile, the synchronization of Haken-Lorenz chaotic systems is achieved based on the scheme of intermittent feedback.