COVID-19 strikes huge impacts from 2019 to 2020，especially on the investment strategy and asset allocation of global family offices. More than half of the family offices participated in strategic asset allocation as a fundamental method of wealth against risks；over 55% family offices re-modified their investment plans，adjusting to be defense-oriented in macroscopic strategy of wealth growth，and actively taking part in SPAC affairs. Family offices worldwide show a trend of increasing the ratio of active investments in investment management，and diminishing the ratio of out-sourcing services；lifting the allocation ratio of alternative investment in asset allocation and maintaining a certain proportion of cash assets. All of these manifest the cautious attitude of management team of family offices.