The invention belongs to the technical field of medicines and particularly relates to an
artemether oral micro-
emulsion in-situ gel and a preparation method thereof. The
artemether oral micro-emulsionin-situ gel is prepared from the following components of 0.1-0.8% of
artemether, 0.9-7.2% of oil phases, 0.4-12% of surfactants, 0.4-12% of cosurfactants, 0.23-0.3% of in-situ gel substrates, 0-0.1%of adhesives and the
balance water. The average particle size of
emulsion drops of the artemether oral micro-
emulsion in-situ gel is 20.90 nm, the emulsion drops are uniform in size, the
solubility and releasing rate of the artemether can be increased, and the artemether oral micro-emulsion in-situ gel is stable at the
room temperature; the artemether oral micro-emulsion in-situ gel is low in
viscosity and good in flowability, the gel is formed immediately in a
stomach after
oral administration, the detention time of the artemether in the
stomach can be prolonged, treatment of a
stomach cancerand improving of the
bioavailability of the artemether are facilitated; and the preparation technique is easy, operation and filling are easy, and industrial production is facilitated.