A method of producing an organosilicon compound includes substituting at least an OR
1
group of a compound shown by the following general formula (1) to obtain a compound shown by the following general formula (2),
Si(OR
1
)
3-m
Y
1
m
—R
2
—Si(OR
3
)
3-n
Y
2
n
(1)
Si(OR
4
)
3-m
Y
1
m
—R
2
—Si(OR
4
)
3-n
Y
2
n
(2).