The level of financialization may have positive or negative effects on enterprise investment. According to the precautionary savings theory, compared with long-term assets such as fixed assets and intangible assets, which are characterized by long term, poor liquidity and irreversibility, financial assets have strong liquidity and low adjustment costs. Enterprises holding financial assets can act as a "reservoir". When the future main business investment is short of funds, real enterprises can obtain funds by selling financial assets with strong liquidity, Reduce dependence on external financing and alleviate the problem of insufficient investment. The main theoretical basis for the negative impact is that the rise of financial asset allocation will have crowding out effect on industrial investment. As enterprises are limited by the financing contract, the increase of the share of financial assets must be at the cost of the decline of industrial investment. At the same time, the improvement of the degree of financialization will increase the proportion of dividends and interest paid by enterprises to the financial market in the profits, which has an effect of crowding out investment. The improvement of corporate financialization has affected the development of industrial investment to a certain extent. In the financial market environment where China advocates "getting rid of the false and moving towards the real", it is necessary to study the balance between corporate financial investment and industrial investment, as well as the specific impact and function channels of financial investment on industrial investment.