The present invention relates to a natural dyeing method using a dyeing machine and natural dyeing fabric dyed by using the same. The natural dyeing method using the dyeing machine includes the steps of: a) pre-treating dyeing target fabric b) preparing a natural dye powder c) dyeing the fabric by inputting the fabric in the step a) and the natural dye powder in the step b) into the dyeing machine d) inputting a mordant material to the fabric dyed in the step c) and e) washing and drying the fabric treated with the mordant material in the step d). According to the present invention, since the fabric treated with ultrasonic waves is dyed using nano-molecular natural dye powder, natural dyes are effectively absorbed into a raw material within a short time even at a low temperature of 50 °C or lower, so that qualities such as color and touch feeling are maintained uniformly. In addition, since the natural dyeing method of the present invention uses the dyeing machine rather than a manual operation to dye the fabric with the natural dyes, mass production is possible, so that a price of a product is lowered, which is economical, productivity and efficiency are excellent, and a maker, a producer, and a designer are able to work conveniently. In addition, since scouring agents and bleaching agents are not used, problems such as environmental pollution, skin allergy due to chemicals and the like are able to be solved, so that the present invention is able to be used for manufacturing operating gowns, patient gowns, bandages, gauze, senior clothing, infant clothing, diapers, underwear, shirts, neckties, scarves, handkerchiefs, blouses, bedclothes, curtains, dishcloths, towels, tablecloths, sportswear, and the like.COPYRIGHT KIPO 2017본 발명은 염색기계를 이용한 천연염색 방법 및 이를 하여 염색된 천연 염색 직물에 관한 것으로, a) 염색하고자 하는 원단을 전처리하는 단계 b) 천연염료분말을 준비하는 단계 c) 상기 a) 단계의 원단과 b)단계의 천연염료분말을 염색기계에 투입하여 원단을 염색하는 단계 d) 상기 c)단계에서 염색된 원단에 매염재를 투입하는 단계 및 e) 상기 d) 단계에서 매염재가 처리된 원단을 수세 및 건조하는 단계를 포함하는 본 발명에 따르면