Abstract: To study the effect of fully biodegradable mulch film on sugarbeet yield and soil physiochemical properties in southern Xinjiang agricultural production, poly(butylene adipate-co-terephthalate) (PBAT) polyester-type fully biodegradable mulch film was used as the treatments and ordinary polyethylene (PE) mulch film as the control to analyze the effect of degradable mulch film on experimental zone soil temperature, moisture content, nutrients, sugarbeet production and so on. The results showed that with the growth process of sugarbeet, the degradation rate of biodegradable mulch film was smaller in June-August (4.5%-12.8%) and significantly increased in October (45.8%). There was no significant difference in the emergence rate, growth period, biomass (including underground, aboveground and whole plant), sugar and yield between the biodegradable mulch film and the control. During the growing period of sugarbeet (June-October), the change trend of average soil temperature and moisture content of degradation mulch film and the control under 5, 15 and 25 cm was basically consistent. There was no significant difference in the average soil temperature between the two treatments at 5, 15 and 25 cm, while the average soil moisture content was all lower than that of the control, and the average soil moisture content at 15 cm was significantly lower than that of the control. During the growing period of sugarbeet, there were no significant differences of biodegradable mulch film and the control in soil available nitrogen, phosphorus and kalium, soil total salt and soil pH between 0-20 and 20-40 cm soil layers.