Abstract: Studying environment-friendly bast fiber film buried in the ground floor of different soil pH value regulated by using calcium carbonate is useful, In regard to the buried bast fiber film degradation and the types and number of the soil. The results show that in the weak alkaline soil the bast fiber film degradation at the speed is faster than the weak acid and neutral conditions, and in alkaline conditions the number of micro-organisms is the most, in particular, is one of the actinomycetes in the number of the most obvious. It is a significant positive correlation between the number of Actinomycosis and the degradation of bast fiber film.