  To achieve Bose-Einstein condensation, one may implement evaporative cooling
by dynamically regulating the power of laser beams forming the optical dipole
trap. We propose and experimentally demonstrate a protocol of Bayesian
optimization of Bose-Einstein condensation via the evaporative cooling model.
Applying this protocol, pure Bose-Einstein condensate of 87Rb with 2.4X10e4
atoms can be produced via evaporative cooling from the initial stage when the
number of atoms is 6.0X10e5 at a temperature of 12{\mu}K. In comparison with
Bayesian optimization via blackbox experiment, our protocol only needs a few
experiments required to verify some close-to-optimal curves for optical dipole
trap laser powers, therefore it greatly saves experimental resources.
