The study aimed to identify the impact of E-Commerce (regulations and legislations, infrastructure, manpower) on stimulating investment in the Kingdom of Saudi Arabia. We applied the descriptive-analytical method for achieving the study objectives. The questionnaire was administered to collect the data that were then analyzed using the SPSS system to provide answers for related questions and hypotheses. A random sample of 250 volunteering investors was taken, and the number of respondents reached 202 respondents, which represents 81% of the study population. We found that there is a significant impact of E-Commerce on motivating the investment and the existence of a statistically significant correlation between the independent variables as a whole were confirmed. The study also finds a substantial impact of the age variable on the investment in the KSA at the level (α=0.05), and the differences emerge of the age group (31-40). A few recommendations are provided, such as intensifying the studies within the subject domain by using different research methods. Further, another recommendation is to conduct different practical scientific studies on the state level to develop a structured and gradual mechanism for converting 85% of the conventional retail sector t o E-Commerce in accordance with the KSA vision in 2030.