The invention relates to the field of capsules preparation, in particular to a preparation and 
processing system of 
vitamin capsules and a preparation method thereof. The preparation and 
processing system comprises a main body, the main body is of a tubular structure, and a feeding bin, a cleaning bin, a 
drying bin and a discharging bin are sequentially and annularly distributed in the circumferential direction of the main body, a first support of a cross-shaped structure is fixedly installed on the top of the inner wall of the main body, a first partition plate is arranged at the bottom of the first support and located among the feeding bin, the cleaning bin, the 
drying bin and the discharging bin, a first motor is fixedly installed at the bottom of the first support, a 
rotating disc is fixedly installed at the output end of the first motor, and the top of the 
rotating disc makes contact with the bottom of the first partition plate; a second partition plate of a cross-shaped structure is arranged on the inner wall of the main body and located below the 
rotating disc, the top of the second partition plate makes contact with the bottom of the rotating disc. According to the invention, the formed 
vitamin capsules can be automatically cleaned and dried, the preparation efficiency of the 
vitamin capsules is greatlyimproved, and the preparation and 
processing system of vitamin capsules and preparation method thereof are suitable for popularization.