After a bright start to his career at Chelsea, the goals have dried up for Morata.
The Spaniard has not scored a goal since December 26 and has been hit by injury and disciplinary problems.
But Conte believes Morata will eventually come good.
Conte said: “I can repeat always the same concept. For Morata this is the first full season in his career.
“In the past, with Madrid and Juve he was on the bench. For this reason we must have great patience and are talking about an important striker.
“He is a really important prospect for Chelsea. He is in contention for tomorrow’s game, I can tell you this.
“I saw great will and focus to fight for a place.”
Morata has been struggling for weeks to find top form again.
Both he and Olivier Giroud were omitted from the starting XI in the first leg of Chelsea’s Champions League clash with Barcelona last month.
Morata is averaging fewer than three shots per game in the Premier League season, having cost the Blues £60m in a deal with Real Madrid last summer.
Conte’s Chelsea are in Barcelona ahead of Wednesday’s second leg.
The manager was criticised for his defensive tactics in defeats at Manchester City and Manchester United in recent weeks.
Chelsea beat Crystal Palace 2-1 at the weekend to end a three-game winless streak.
They need at least one goal against Barca to avoid exiting the Champions League, with Morata potentially set to start up top.