The 43-year-old was previously charged with possessing and distributing child exploitation material between January 7 and 9.
On Monday, Silvey was charged with producing the material from February to June 2022 and slugged with an additional count of possessing it on January 12 this year.
The author of novels Jasper Jones and Rhubarb appeared in Fremantle Magistrates Court without entering pleas on any of the charges.
The father-of-three's bail was extended with the same strict conditions, but no additional surety was required.
His lawyer Natalia Tasic told the court she intended to have discussions with investigators about the production of exploitative material allegation.
Silvey, who has been shortlisted for the Miles Franklin Literary Award and the International Dublin Literary Award, was allegedly caught communicating with child exploitation offenders online when police raided his Fremantle home before his arrest in January.
Silvey is best known for his 2009 coming-of-age novel Jasper Jones, which is considered a modern Australian classic and was aimed at adults and young readers.
The global hit won the Australian Book Industry's Book of the Year Award and has been adapted for film and various stage productions.
His most recent novel Runt and the Diabolical Dognapping was published by Allen & Unwin in September.
Another of his books is Honeybee, which won the Australian Indie Book Award in 2021.
Most of his works were purged from reading lists across the nation after he was charged.
Allen & Unwin and Fremantle Press, which published Rhubarb, have stopped promoting his books.
Silvey's case was adjourned to May 5 for negotiations.
He declined to answer questions from a large media pack as he left the court.
Police investigating Silvey have also charged a 68-year-old woman with two counts of producing child exploitation material and one count of distributing it after analysing the writer's electronic devices.
She allegedly created and distributed the material with Silvey, police said.
The woman is also charged with three counts of failing to comply with reporting obligations.
She has been remanded in custody to appear before Joondalup Magistrates Court on April 2.
1800 RESPECT (1800 737 732)
National Sexual Abuse and Redress Support Service 1800 211 028
Lifeline 13 11 14
Kids Helpline 1800 55 1800 (for people aged 5 to 25)
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