Catalyst for polymerization of olefin, method for producing polymer of olefin, and propylene homopolymer

A catalyst for polymerization of an olefin, comprising:

• a solid catalyst component for polymerization of an olefin, comprising magnesium, titanium, halogen, and a succinic acid diester compound, wherein a ratio (S/T), represented by a total content of an internal electron-donating compound with the succinic acid diester compound as a main component(S) to a content of the titanium (T), is 0.60 to 1.30 in a molar ratio,
• an organoaluminum compound, and
• one or more external electron-donating compounds selected from aminosilane compounds represented by the following formula (I):
• R1nSi(NR2R3)4-n (I)
• wherein R1 is an alkyl group having 1 to 20 carbon atoms, a vinyl group, an alkenyl group having 3 to 12 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, an vinyloxy group, an alkenyloxy group having 3 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, a cycloalkyloxy group having 3 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms or an aryloxy group having 6 to 20 carbon atoms, wherein when more than one R1 are present, the more than one R1 may be the same as or different from each other;
• R2 and R3 are a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, a vinyl group, an alkenyl group having 3 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, a cycloalkenyl group having 3 to 20 carbon atoms, or an aryl group having 6 to 20 carbon atoms, wherein R2 and R3 may be the same as or different from each other and may be bonded to each other to form a ring, and when more than one NR2R3 groups are present, the more than one NR2R3 groups may be the same as or different from each other;
• and n satisfies 1≤n≤3.