The invention discloses a preparing method for bamboo strips used for bamboo craft weaving. The preparing method includes the following steps that firstly, a bamboo tube is put into first soaking liquid to be subjected to primary soaking for 1-2 days under the temperature ranging from 50 DEG C to 60 DEG C; secondly, the bamboo tube obtained after primary soaking is subjected to freezing treatment; and thirdly, the frozen bamboo tube is put into a second soaking solution to be subjected to secondary soaking for 1 h to 3 h under the temperature ranging from 50 DEG C to 60 DEG C, and the bamboo strips are obtained. The bamboo strips treated through the preparing method have good flexibility and are very suitable for weaving of various crafts.