The invention belongs to the technical field of the production and preparation of cyclohexylamine and particularly relates to a production method for preparing cyclohexylamine from phenylamine. Through controlling parameters, such as time, temperature, pressure and the like, of all steps, the yield of cyclohexylamine products is high and is over 98%, the quality is stable, the yield is high, the production capacity is large, the side reactions are few, a small amount of byproduct dicyclohexylamine produced during reaction can be recovered and purified, and the added value of the products is increased; and through engineering calculation and advanced DCS (Distributed Control System) control, the parameters are stable and are little in fluctuation, and qualified materials in a negative pressure tower are directly transferred to a rectification tower from the negative pressure tower through pressure difference between the negative pressure tower and the rectification tower, so that the working procedure is efficient and energy-saving, the continuous rectification procedure is completed, the continuity of the whole process is strong, the degree of automation is high, the staff ratio is low, the unit consumption is low, and the yield is high.