We report four novel position angle measurements of the core region M81* at 5GHz and 8GHz, which confirm presence sinusoidal jet precession M81 as suggested by \cite{Marti-Vidal2011}. The model makes three testable predictions on evolution precession, we test in our data with observations 2017, 2018, 2019. Our confirms a period $\sim7~\mathrm{yr}$ top small linear drift. further show that two 8...