OBJECTIVE: To establish microbial limit test method for 4 kinds of hospital Chinese medicine preparations（ Yanshao Weikang capsules

Ruling tablets

Zhikeping capsules and Yanshen capsules） containing TCM powder. METHODS: According to specific rules of the four general rules 1105

1106 and 1107 of Pharmacopoeia of the People’s Republic of China（ 2015 edition） for testing basis. Plating method was adopted to process the test sample and explore the dilution level. RESULTS: In the applicability test for the total count of aerobic bacteria

molds and yeasts

within the allowable dilution level

the plating dilution method can eliminate antibacterial effect

and the recovery rate of each test bacteria was 0. 5-2. 0. All the 4 preparations were tested for bacteria control by direct inoculation method

none of which had antibacterial effect. CONCLUSIONS: Yanshao Weikang capsules

Ruling tablets

Zhikeping capsules and Yanshen capsules can all be tested for the total count of aerobic bacteria

molds and yeasts by plating method

and the control bacteria inspections can be conducted by direct inoculation.