A method of producing a composite laminate, comprising: preparing an assembly (50, 50A, 60) having at least one of an abutment part in which a first end of a first sheet-like prepreg (10, 10A, 30, 30A) comprising reinforcing fibers (12, 32) which are continuous fibers and a second end of a second sheet-like prepreg (10, 10A, 30, 30A) comprising reinforcing fibers (12, 32) which are continuous fibers are abutted so that end surfaces of the first end and the second end come in contact with each other and an overlapping part in which a first end of a first sheet-like prepreg (10, 10A-10C, 30, 30A-30C) comprising reinforcing fibers (12, 32) which are continuous fibers and a second end of a second sheet-like prepreg (10, 10A-10C, 30, 30A-30C) comprising reinforcing fibers (12, 32) which are continuous fibers overlap so that the end surfaces of the first end and the second end face the opposite direction each other, and characterized in that the method satisfies one of (i) and (ii): (i) the assembly has an abutment part, the method further comprising laminating a sheet molding compound on the assembly so that a first portion in which the sheet molding compound and the abutment part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A, 30, 30A) and the edge shape of the second end of the second sheet-like prepreg (10, 10A, 30, 30A) in a plan view is an arc shape in the first portion, and (ii) the assembly (50A, 60) has an overlapping part, the method further comprising laminating a sheet molding compound on the assembly (50A, 60) so that a second portion in which the sheet molding compound and the overlapping part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A-10C, 30, 30A-30C) and the edge shape of the second end of the second sheet-like prepreg (10, 10A-10C, 30, 30A-30C) in a plan view is an arc shape in the second portion. preparing an assembly (50, 50A, 60) having at least one of an abutment part in which a first end of a first sheet-like prepreg (10, 10A, 30, 30A) comprising reinforcing fibers (12, 32) which are continuous fibers and a second end of a second sheet-like prepreg (10, 10A, 30, 30A) comprising reinforcing fibers (12, 32) which are continuous fibers are abutted so that end surfaces of the first end and the second end come in contact with each other and an overlapping part in which a first end of a first sheet-like prepreg (10, 10A-10C, 30, 30A-30C) comprising reinforcing fibers (12, 32) which are continuous fibers and a second end of a second sheet-like prepreg (10, 10A-10C, 30, 30A-30C) comprising reinforcing fibers (12, 32) which are continuous fibers overlap so that the end surfaces of the first end and the second end face the opposite direction each other, and characterized in that the method satisfies one of (i) and (ii): (i) the assembly has an abutment part, the method further comprising laminating a sheet molding compound on the assembly so that a first portion in which the sheet molding compound and the abutment part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A, 30, 30A) and the edge shape of the second end of the second sheet-like prepreg (10, 10A, 30, 30A) in a plan view is an arc shape in the first portion, and (ii) the assembly (50A, 60) has an overlapping part, the method further comprising laminating a sheet molding compound on the assembly (50A, 60) so that a second portion in which the sheet molding compound and the overlapping part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A-10C, 30, 30A-30C) and the edge shape of the second end of the second sheet-like prepreg (10, 10A-10C, 30, 30A-30C) in a plan view is an arc shape in the second portion. (i) the assembly has an abutment part, the method further comprising laminating a sheet molding compound on the assembly so that a first portion in which the sheet molding compound and the abutment part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A, 30, 30A) and the edge shape of the second end of the second sheet-like prepreg (10, 10A, 30, 30A) in a plan view is an arc shape in the first portion, and (ii) the assembly (50A, 60) has an overlapping part, the method further comprising laminating a sheet molding compound on the assembly (50A, 60) so that a second portion in which the sheet molding compound and the overlapping part overlap is formed, and each of the edge shape of the first end of the first sheet-like prepreg (10, 10A-10C, 30, 30A-30C) and the edge shape of the second end of the second sheet-like prepreg (10, 10A-10C, 30, 30A-30C) in a plan view is an arc shape in the second portion.