Lawmakers are likely to receive a hero's welcome in Assad-controlled areas where local residents and refugees are ecstatic about Russia's military help, chanting "Thank you!" to a bus carrying Moscow-based journalists.
The lawmakers' visit, announced by Russian news agencies, comes three days after Assad made a surprise trip to Moscow to meet with President Vladimir Putin.
The legislators from both chambers of the Russian parliament said they are on a humanitarian mission but will also be meeting Assad.
At a refugee camp pitched next to a sports arena in the coastal city of Latakia, civilians who fled the war to the relative safety of the government-controlled area lauded Russia's air support for the Syrian army.
When journalists arrived at the camp, children began to chant slogans in support of Assad and shout: "Putin, thank you!"
"I hope with Russian pilots' help, our military will advance and defeat terrorists so that we could return to our homes," said ??ahmad Attan who served in the Syrian military and was wounded in fighting.
The coastal province of Latakia is in the heartland of the Alawite minority. Unlike other parts of Syria, it has remained firmly under government control and has largely been spared destruction that most of the country has suffered in the civil war that began in 2011.
