Applicable. The policy of small and micro enterprises is mainly to support and promote the development of small and micro enterprises, provide certain preferential policies and support measures, and encourage them to participate in economic activities such as public procurement. The book procurement bidding is applicable to the policy of small and micro enterprises, that is, small and micro enterprises can enjoy some special treatment in the bidding process, such as reducing the deposit, simplifying the qualification requirements and giving priority to bid evaluation. Such a policy aims to provide more opportunities for small and micro enterprises to participate in book procurement and improve their competitiveness. Therefore, book procurement bidding is applicable to the policy of small and micro enterprises.